diff --git a/CMakeLists.txt b/CMakeLists.txt
index 33d05376..c3ee72fe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,6 +16,7 @@ option(BUILD_TOOLS             "Build tools" ON)
 option(ENABLE_ESI_PARSER       "Enable ESI XML parser" ON)
 option(ENABLE_AF_XDP           "Enable AF_XDP socket for improved performance (requires libxdp, libbpf, clang)" OFF)
 option(ENABLE_CODE_COVERAGE    "Enable code coverage (requires gcovr)" OFF)
+option(BUILD_EEPROM_EDITOR     "Build EEPROM editor GUI (requires imgui, glfw)" OFF)
 
 if (NUTTX)
   set(BUILD_MASTER_EXAMPLES OFF CACHE BOOL "" FORCE)
@@ -25,6 +26,7 @@ if (NUTTX)
   set(ENABLE_ESI_PARSER     OFF CACHE BOOL "" FORCE)
   set(ENABLE_AF_XDP         OFF CACHE BOOL "" FORCE)
   set(ENABLE_CODE_COVERAGE  OFF CACHE BOOL "" FORCE)
+  set(BUILD_EEPROM_EDITOR   OFF CACHE BOOL "" FORCE)
 endif()
 
 
@@ -77,5 +79,8 @@ if (BUILD_TOOLS)
   add_subdirectory(tools)
 endif()
 
+if (BUILD_EEPROM_EDITOR)
+  add_subdirectory(tools/eeprom_editor)
+endif()
 
 add_subdirectory(py_bindings)
diff --git a/conan/conanfile.py b/conan/conanfile.py
index 9387d24d..ffb9ac99 100644
--- a/conan/conanfile.py
+++ b/conan/conanfile.py
@@ -15,6 +15,7 @@ class KickCATDev(ConanFile):
         "simulation":       [True, False],
         "tools":            [True, False],
         "master_examples":  [True, False],
+        "eeprom_editor":    [True, False],
     }
     default_options = {
         "unit_tests":       False,
@@ -22,6 +23,7 @@ class KickCATDev(ConanFile):
         "simulation":       True,
         "tools":            True,
         "master_examples":  True,
+        "eeprom_editor":    False,
     }
 
     generators = "CMakeDeps"
@@ -39,6 +41,10 @@ def requirements(self):
         if self.options.tools or self.options.master_examples or self.options.simulation:
             self.requires("argparse/3.2")
 
+        if self.options.eeprom_editor:
+            self.requires("imgui/1.92.6")
+            self.requires("portable-file-dialogs/0.1.0")
+
         if self.settings.os == "Windows":
             self.requires("npcap/1.70")
 
diff --git a/lib/include/kickcat/protocol.h b/lib/include/kickcat/protocol.h
index 8eb13217..c0410ed8 100644
--- a/lib/include/kickcat/protocol.h
+++ b/lib/include/kickcat/protocol.h
@@ -563,7 +563,7 @@ namespace kickcat
 
             uint16_t mailbox_protocol;
 
-            uint16_t reserved4[32];
+            uint16_t reserved4[33];
             uint16_t size;
             uint16_t version;
         }__attribute__((__packed__));
diff --git a/scripts/lib/build_options.sh b/scripts/lib/build_options.sh
index 42af1af4..ad697025 100644
--- a/scripts/lib/build_options.sh
+++ b/scripts/lib/build_options.sh
@@ -9,6 +9,7 @@ declare -A OPT_DEFAULTS=(
     [esi_parser]=ON
     [simulation]=ON
     [tools]=ON
+    [eeprom_editor]=OFF
     [code_coverage]=OFF
     [af_xdp]=OFF
 )
@@ -20,6 +21,7 @@ declare -A OPT_DESCRIPTIONS=(
     [esi_parser]="Enable ESI XML parser"
     [simulation]="Build simulation"
     [tools]="Build tools"
+    [eeprom_editor]="Build EEPROM editor GUI"
     [code_coverage]="Enable code coverage"
     [af_xdp]="Enable AF_XDP socket"
 )
@@ -31,6 +33,7 @@ declare -A OPT_CMAKE_FLAGS=(
     [esi_parser]="ENABLE_ESI_PARSER"
     [simulation]="BUILD_SIMULATION"
     [tools]="BUILD_TOOLS"
+    [eeprom_editor]="BUILD_EEPROM_EDITOR"
     [code_coverage]="ENABLE_CODE_COVERAGE"
     [af_xdp]="ENABLE_AF_XDP"
 )
@@ -42,6 +45,7 @@ declare -A OPT_CONAN_FLAGS=(
     [esi_parser]="esi_parser"
     [simulation]="simulation"
     [tools]="tools"
+    [eeprom_editor]="eeprom_editor"
 )
 
 # Load .buildconfig into the CONFIG associative array.
diff --git a/tools/eeprom_editor/App.cc b/tools/eeprom_editor/App.cc
new file mode 100644
index 00000000..2500b2f3
--- /dev/null
+++ b/tools/eeprom_editor/App.cc
@@ -0,0 +1,987 @@
+#include <cerrno>
+#include <cstdio>
+#include <cstring>
+#include <fstream>
+#include <iterator>
+#include <system_error>
+
+#ifdef __linux__
+    #include <climits>
+    #include <unistd.h>
+#endif
+
+#include <imgui.h>
+#include <portable-file-dialogs.h>
+
+#include "kickcat/EEPROM/EEPROM_factory.h"
+#include "kickcat/Bus.h"
+#include "kickcat/Link.h"
+#include "kickcat/helpers.h"
+
+#include "App.h"
+#include "Editors.h"
+
+namespace kickcat::eeprom_editor
+{
+    constexpr float SIDEBAR_WIDTH = 220.0f;
+
+    static void statusSeparator()
+    {
+        ImGui::SameLine();
+        ImGui::Text("|");
+        ImGui::SameLine();
+    }
+
+    struct CategoryInfo
+    {
+        Category id;
+        char const* label;
+    };
+
+    constexpr CategoryInfo CATEGORIES[] =
+    {
+        { Category::Info,         "Info (Header)"  },
+        { Category::Strings,      "Strings"        },
+        { Category::General,      "General"        },
+        { Category::SyncManagers, "Sync Managers"  },
+        { Category::FMMU,         "FMMU"           },
+        { Category::TxPDO,        "TxPDO"          },
+        { Category::RxPDO,        "RxPDO"          },
+    };
+
+    App::App()
+    {
+        mem_edit_.ReadOnly = true;
+        mem_edit_.OptShowOptions = false;
+        mem_edit_.OptShowDataPreview = false;
+        newFile();
+    }
+
+    App::~App()
+    {
+        joinWorker();
+    }
+
+    void App::render()
+    {
+        finalizeWorker();
+        renderMenuBar();
+
+        bool const busy = isBusy();
+
+        auto const avail = ImGui::GetContentRegionAvail();
+        float const status_bar_height = ImGui::GetFrameHeight();
+        float const hex_view_height   = 200.0f;
+        float const content_height    = avail.y - hex_view_height - status_bar_height;
+
+        if (busy) { ImGui::BeginDisabled(); }
+
+        // Top region: sidebar + content panel
+        ImGui::BeginChild("##top_region", ImVec2(0, content_height), ImGuiChildFlags_None);
+        {
+            ImGui::BeginChild("##sidebar", ImVec2(SIDEBAR_WIDTH, 0),
+                              ImGuiChildFlags_Borders);
+            renderSidebar();
+            ImGui::EndChild();
+
+            ImGui::SameLine();
+
+            ImGui::BeginChild("##content", ImVec2(0, 0), ImGuiChildFlags_Borders);
+            renderContentPanel();
+            ImGui::EndChild();
+        }
+        ImGui::EndChild();
+
+        // Hex view + options side panel
+        ImGui::BeginChild("##hex_view", ImVec2(0, hex_view_height), ImGuiChildFlags_Borders);
+        {
+            constexpr float OPTIONS_PANEL_WIDTH = 220.0f;
+            float hex_width = ImGui::GetContentRegionAvail().x - OPTIONS_PANEL_WIDTH;
+
+            ImGui::BeginChild("##hex_editor", ImVec2(hex_width, 0));
+            if (not serialized_.empty())
+            {
+                mem_edit_.DrawContents(serialized_.data(), serialized_.size());
+            }
+            ImGui::EndChild();
+
+            ImGui::SameLine();
+
+            ImGui::BeginChild("##hex_options", ImVec2(0, 0));
+            renderHexPanel();
+            ImGui::EndChild();
+        }
+        ImGui::EndChild();
+
+        if (busy) { ImGui::EndDisabled(); }
+
+        renderStatusBar();
+
+        // Modal dialogs (rendered as overlays)
+        renderDeviceDialog();
+        renderPrivilegeDialog();
+    }
+
+    void App::newFile()
+    {
+        sii_ = eeprom::SII{};
+        createMinimalEEPROM(sii_.info);
+        sii_.info.crc = eeprom::computeInfoCRC(sii_.info);
+        serialized_ = sii_.serialize();
+        file_path_.clear();
+        modified_ = false;
+    }
+
+    void App::openFile()
+    {
+        auto selection = pfd::open_file("Open EEPROM binary", ".",
+                                        {"EEPROM files", "*.bin *.eep", "All files", "*"}).result();
+        if (not selection.empty())
+        {
+            openFilePath(selection[0]);
+        }
+    }
+
+    void App::saveFile()
+    {
+        if (file_path_.empty())
+        {
+            saveFileAs();
+        }
+        else
+        {
+            saveFilePath(file_path_);
+        }
+    }
+
+    void App::saveFileAs()
+    {
+        auto dest = pfd::save_file("Save EEPROM binary", ".",
+                                   {"EEPROM files", "*.bin *.eep", "All files", "*"}).result();
+        if (not dest.empty())
+        {
+            saveFilePath(dest);
+        }
+    }
+
+    void App::openFilePath(std::string const& path)
+    {
+        std::ifstream file(path, std::ios::binary);
+        if (not file)
+        {
+            pfd::message("Error", "Cannot open file: " + path,
+                         pfd::choice::ok, pfd::icon::error);
+            return;
+        }
+
+        std::vector<uint8_t> data{std::istreambuf_iterator<char>(file),
+                                   std::istreambuf_iterator<char>()};
+
+        try
+        {
+            sii_ = eeprom::SII{};
+            sii_.parse(data);
+            serialized_ = sii_.serialize();
+            file_path_  = path;
+            modified_   = false;
+        }
+        catch (std::exception const& e)
+        {
+            pfd::message("Parse error", std::string("Failed to parse EEPROM:\n") + e.what(),
+                         pfd::choice::ok, pfd::icon::error);
+            newFile();
+        }
+    }
+
+    void App::saveFilePath(std::string const& path)
+    {
+        serialized_ = sii_.serialize();
+
+        std::ofstream file(path, std::ios::binary);
+        if (not file)
+        {
+            pfd::message("Error", "Cannot write file: " + path,
+                         pfd::choice::ok, pfd::icon::error);
+            return;
+        }
+
+        file.write(reinterpret_cast<char const*>(serialized_.data()),
+                   static_cast<std::streamsize>(serialized_.size()));
+        file_path_ = path;
+        modified_  = false;
+    }
+
+    void App::renderMenuBar()
+    {
+        if (ImGui::BeginMenuBar())
+        {
+            if (ImGui::BeginMenu("File"))
+            {
+                if (ImGui::MenuItem("New", "Ctrl+N"))
+                {
+                    newFile();
+                }
+                if (ImGui::MenuItem("Open...", "Ctrl+O"))
+                {
+                    openFile();
+                }
+                ImGui::Separator();
+                if (ImGui::MenuItem("Save", "Ctrl+S"))
+                {
+                    saveFile();
+                }
+                if (ImGui::MenuItem("Save As...", "Ctrl+Shift+S"))
+                {
+                    saveFileAs();
+                }
+                ImGui::Separator();
+                if (ImGui::MenuItem("Quit", "Ctrl+Q"))
+                {
+                    std::exit(0);
+                }
+                ImGui::EndMenu();
+            }
+
+            if (ImGui::BeginMenu("Edit"))
+            {
+                if (ImGui::MenuItem("Recompute CRC"))
+                {
+                    sii_.info.crc = eeprom::computeInfoCRC(sii_.info);
+                    serialized_   = sii_.serialize();
+                    modified_     = true;
+                }
+                ImGui::EndMenu();
+            }
+
+            if (ImGui::BeginMenu("Device"))
+            {
+                bool busy = isBusy();
+
+                if (ImGui::MenuItem("Connect...", nullptr, false, not isConnected() and not busy))
+                {
+                    device_error_.clear();
+                    cached_interfaces_ = listInterfaces();
+                    selected_slave_index_ = -1;
+                    device_action_ = DeviceAction::Connect;
+                    show_device_dialog_ = true;
+                }
+                if (ImGui::MenuItem("Disconnect", nullptr, false, isConnected() and not busy))
+                {
+                    disconnect();
+                }
+                ImGui::Separator();
+                bool has_slaves = isConnected() and not bus_->slaves().empty() and not busy;
+                if (ImGui::MenuItem("Load from Slave...", nullptr, false, has_slaves))
+                {
+                    selected_slave_index_ = -1;
+                    device_error_.clear();
+                    device_action_ = DeviceAction::Load;
+                    show_device_dialog_ = true;
+                }
+                if (ImGui::MenuItem("Flash to Slave...", nullptr, false, has_slaves))
+                {
+                    selected_slave_index_ = -1;
+                    device_error_.clear();
+                    device_action_ = DeviceAction::Flash;
+                    show_device_dialog_ = true;
+                }
+                ImGui::EndMenu();
+            }
+
+            float title_width = ImGui::CalcTextSize("KickCAT EEPROM Editor").x;
+            ImGui::SameLine(ImGui::GetWindowWidth() - title_width - 16.0f);
+            ImGui::TextColored(COLOR_DIM, "KickCAT EEPROM Editor");
+
+            ImGui::EndMenuBar();
+        }
+
+        // Keyboard shortcuts
+        auto const& io = ImGui::GetIO();
+        if (io.KeyCtrl and ImGui::IsKeyPressed(ImGuiKey_N))
+        {
+            newFile();
+        }
+        if (io.KeyCtrl and ImGui::IsKeyPressed(ImGuiKey_O))
+        {
+            openFile();
+        }
+        if (io.KeyCtrl and ImGui::IsKeyPressed(ImGuiKey_S))
+        {
+            if (io.KeyShift)
+            {
+                saveFileAs();
+            }
+            else
+            {
+                saveFile();
+            }
+        }
+        if (io.KeyCtrl and ImGui::IsKeyPressed(ImGuiKey_Q))
+        {
+            std::exit(0);
+        }
+    }
+
+    void App::renderSidebar()
+    {
+        ImGui::TextColored(COLOR_GREY, "CATEGORIES");
+        ImGui::Separator();
+
+        for (auto const& cat : CATEGORIES)
+        {
+            bool selected = (cat.id == active_category_);
+
+            if (ImGui::Selectable(cat.label, selected, ImGuiSelectableFlags_None, ImVec2(0, 24)))
+            {
+                active_category_ = cat.id;
+            }
+        }
+    }
+
+    void App::renderContentPanel()
+    {
+        bool changed = false;
+
+        switch (active_category_)
+        {
+            case Category::Info:         { changed = info::render(sii_);                    break; }
+            case Category::Strings:      { changed = strings::render(sii_);                 break; }
+            case Category::General:      { changed = general::render(sii_);                 break; }
+            case Category::SyncManagers: { changed = syncm::render(sii_);                   break; }
+            case Category::FMMU:         { changed = fmmu::render(sii_);                    break; }
+            case Category::TxPDO:        { changed = pdo::render(sii_, pdo::Direction::Tx); break; }
+            case Category::RxPDO:        { changed = pdo::render(sii_, pdo::Direction::Rx); break; }
+        }
+
+        if (changed)
+        {
+            modified_   = true;
+            serialized_ = sii_.serialize();
+        }
+    }
+
+    void App::renderHexPanel()
+    {
+        ImGui::TextColored(COLOR_GREY, "Display");
+        ImGui::Separator();
+
+        if (ImGui::DragInt("Columns", &mem_edit_.Cols, 0.2f, 4, 32, "%d"))
+        {
+            mem_edit_.ContentsWidthChanged = true;
+        }
+        if (ImGui::Checkbox("ASCII", &mem_edit_.OptShowAscii))
+        {
+            mem_edit_.ContentsWidthChanged = true;
+        }
+        ImGui::Checkbox("HexII", &mem_edit_.OptShowHexII);
+        ImGui::Checkbox("Grey zeroes", &mem_edit_.OptGreyOutZeroes);
+        ImGui::Checkbox("Uppercase", &mem_edit_.OptUpperCaseHex);
+
+        ImGui::Spacing();
+        ImGui::TextColored(COLOR_GREY, "Data Preview");
+        ImGui::Separator();
+
+        if (mem_edit_.DataPreviewAddr != static_cast<size_t>(-1) and not serialized_.empty())
+        {
+            MemoryEditor::Sizes s;
+            mem_edit_.CalcSizes(s, serialized_.size(), 0);
+            mem_edit_.DrawPreviewLine(s, serialized_.data(), serialized_.size(), 0);
+        }
+        else
+        {
+            ImGui::TextDisabled("Click a byte to preview");
+        }
+    }
+
+    void App::renderStatusBar()
+    {
+        ImGui::Separator();
+
+        if (file_path_.empty())
+        {
+            ImGui::Text("[new file]");
+        }
+        else
+        {
+            ImGui::Text("%s", file_path_.c_str());
+        }
+
+        if (modified_)
+        {
+            ImGui::SameLine();
+            ImGui::TextColored(COLOR_YELLOW, "(modified)");
+        }
+
+        statusSeparator();
+
+        auto const size_bytes = serialized_.size();
+        ImGui::Text("%zu bytes (%zu words)", size_bytes, size_bytes / 2);
+
+        statusSeparator();
+
+        uint8_t actual_crc   = static_cast<uint8_t>(sii_.info.crc);
+        uint8_t expected_crc = static_cast<uint8_t>(eeprom::computeInfoCRC(sii_.info));
+
+        if (actual_crc == expected_crc)
+        {
+            ImGui::TextColored(COLOR_GREEN, "CRC 0x%02X OK", actual_crc);
+        }
+        else
+        {
+            ImGui::TextColored(COLOR_RED, "CRC 0x%02X != 0x%02X", actual_crc, expected_crc);
+        }
+
+        statusSeparator();
+
+        {
+            LockGuard lock(worker_status_mutex_);
+            if (isBusy())
+            {
+                ImGui::TextColored(COLOR_BLUE, "%s", worker_status_.c_str());
+                ImGui::SameLine();
+                ImGui::ProgressBar(worker_progress_.load(), ImVec2(150, ImGui::GetFrameHeight()));
+            }
+            else if (not worker_error_.empty())
+            {
+                ImGui::TextColored(COLOR_RED, "%s", worker_error_.c_str());
+            }
+            else if (isConnected())
+            {
+                ImGui::TextColored(COLOR_GREEN, "Connected: %s (%d slaves)",
+                                connected_interface_.c_str(),
+                                static_cast<int>(bus_->slaves().size()));
+            }
+            else
+            {
+                ImGui::TextDisabled("Not connected");
+            }
+        }
+    }
+
+    // ── Device operations ──────────────────────────────────────────────
+
+    bool App::isConnected() const
+    {
+        return bus_ != nullptr;
+    }
+
+    bool App::isBusy() const
+    {
+        return worker_.joinable() and not worker_done_.load();
+    }
+
+    void App::joinWorker()
+    {
+        if (worker_.joinable())
+        {
+            worker_.join();
+        }
+    }
+
+    void App::finalizeWorker()
+    {
+        if (worker_.joinable() and worker_done_.load())
+        {
+            worker_.join();
+        }
+    }
+
+    void App::connectToInterface(std::string const& name)
+    {
+        joinWorker();
+
+        needs_privilege_escalation_ = false;
+        worker_progress_ = 0.0f;
+        worker_done_ = false;
+        {
+            LockGuard lock(worker_status_mutex_);
+            worker_status_ = "Initializing...";
+            worker_error_.clear();
+        }
+
+        std::string interface_name = name;
+        worker_ = std::thread([this, interface_name]()
+        {
+            try
+            {
+                auto [socket_nominal, socket_redundancy] = createSockets(interface_name, "");
+                auto report_redundancy = [](){};
+                auto link = std::make_shared<Link>(socket_nominal, socket_redundancy, report_redundancy);
+                link->setTimeout(2ms);
+
+                auto bus = std::make_unique<Bus>(link);
+                bus->configureWaitLatency(1ms, 10ms);
+
+                {
+                    LockGuard lock(worker_status_mutex_);
+                    worker_status_ = "Detecting slaves...";
+                }
+                worker_progress_ = 0.25f;
+
+                if (bus->detectSlaves() == 0)
+                {
+                    LockGuard lock(worker_status_mutex_);
+                    worker_error_ = "No slaves detected on " + interface_name;
+                    worker_done_ = true;
+                    return;
+                }
+
+                uint16_t param = 0x0;
+                bus->broadcastWrite(reg::EEPROM_CONFIG, &param, 2);
+                bus->setAddresses();
+
+                {
+                    LockGuard lock(worker_status_mutex_);
+                    worker_status_ = "Reading EEPROMs...";
+                }
+                worker_progress_ = 0.5f;
+
+                bus->fetchEeprom();
+
+                // Success: transfer ownership to app (on main thread via done flag)
+                link_ = std::move(link);
+                bus_ = std::move(bus);
+                connected_interface_ = interface_name;
+
+                worker_progress_ = 1.0f;
+                worker_done_ = true;
+            }
+            catch (std::system_error const& e)
+            {
+                LockGuard lock(worker_status_mutex_);
+                if (e.code().value() == EPERM or e.code().value() == EACCES)
+                {
+                    needs_privilege_escalation_ = true;
+                    worker_error_ = "Permission denied: raw socket requires elevated privileges.";
+                }
+                else
+                {
+                    worker_error_ = std::string("Connection failed: ") + e.what();
+                }
+                worker_done_ = true;
+            }
+            catch (std::exception const& e)
+            {
+                LockGuard lock(worker_status_mutex_);
+                worker_error_ = std::string("Connection failed: ") + e.what();
+                worker_done_ = true;
+            }
+        });
+    }
+
+    void App::disconnect()
+    {
+        joinWorker();
+        bus_.reset();
+        link_.reset();
+        connected_interface_.clear();
+        worker_error_.clear();
+    }
+
+    void App::loadFromSlave(int slave_index)
+    {
+        try
+        {
+            auto& slave = bus_->slaves().at(slave_index);
+            sii_ = slave.sii;
+            serialized_ = sii_.serialize();
+            file_path_.clear();
+            modified_ = false;
+        }
+        catch (std::exception const& e)
+        {
+            device_error_ = std::string("Failed to load EEPROM: ") + e.what();
+        }
+    }
+
+    void App::flashToSlave(int slave_index)
+    {
+        joinWorker();
+
+        worker_progress_ = 0.0f;
+        worker_done_ = false;
+        {
+            LockGuard lock(worker_status_mutex_);
+            worker_status_ = "Flashing EEPROM...";
+            worker_error_.clear();
+        }
+
+        // Serialize on the main thread before starting the worker
+        serialized_ = sii_.serialize();
+        std::vector<uint16_t> buffer(serialized_.size() / 2);
+        std::memcpy(buffer.data(), serialized_.data(), serialized_.size());
+
+        worker_ = std::thread([this, slave_index, buffer = std::move(buffer)]()
+        {
+            try
+            {
+                auto& slave = bus_->slaves().at(slave_index);
+
+                {
+                    LockGuard lock(worker_status_mutex_);
+                    worker_status_ = "Writing EEPROM...";
+                }
+
+                for (uint32_t i = 0; i < buffer.size(); ++i)
+                {
+                    // writeEeprom takes a void* — use a local copy to avoid const issues
+                    uint16_t word = buffer[i];
+                    bus_->writeEeprom(slave, static_cast<uint16_t>(i), &word, 2);
+                    worker_progress_ = static_cast<float>(i + 1) / static_cast<float>(buffer.size());
+                }
+
+                worker_done_ = true;
+            }
+            catch (std::exception const& e)
+            {
+                LockGuard lock(worker_status_mutex_);
+                worker_error_ = std::string("Flash failed at ") +
+                                std::to_string(static_cast<int>(worker_progress_.load() * 100)) +
+                                "%: " + e.what();
+                worker_done_ = true;
+            }
+        });
+    }
+
+    // ── Dialog rendering ───────────────────────────────────────────────
+
+    bool App::renderInterfaceList()
+    {
+        bool double_clicked = false;
+
+        if (ImGui::BeginChild("##iface_list", ImVec2(0, -ImGui::GetFrameHeightWithSpacing() * 2.5f)))
+        {
+            for (int i = 0; i < static_cast<int>(cached_interfaces_.size()); ++i)
+            {
+                auto const& iface = cached_interfaces_[i];
+                char label[256];
+                std::snprintf(label, sizeof(label), "%s  (%s)", iface.name.c_str(), iface.description.c_str());
+
+                bool is_selected = (selected_slave_index_ == i);
+                if (ImGui::Selectable(label, is_selected, ImGuiSelectableFlags_AllowDoubleClick))
+                {
+                    selected_slave_index_ = i;
+                    if (ImGui::IsMouseDoubleClicked(0))
+                    {
+                        double_clicked = true;
+                    }
+                }
+            }
+        }
+        ImGui::EndChild();
+
+        return double_clicked;
+    }
+
+    bool App::renderSlaveTable()
+    {
+        if (not isConnected())
+        {
+            return false;
+        }
+
+        bool double_clicked = false;
+        auto& slaves = bus_->slaves();
+
+        if (ImGui::BeginTable("##slaves", 5,
+                ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_ScrollY,
+                ImVec2(0, -ImGui::GetFrameHeightWithSpacing() * 3.0f)))
+        {
+            ImGui::TableSetupColumn("#",            ImGuiTableColumnFlags_WidthFixed, 30.0f);
+            ImGui::TableSetupColumn("Address",      ImGuiTableColumnFlags_WidthFixed, 60.0f);
+            ImGui::TableSetupColumn("Vendor ID",    ImGuiTableColumnFlags_WidthFixed, 100.0f);
+            ImGui::TableSetupColumn("Product Code", ImGuiTableColumnFlags_WidthFixed, 100.0f);
+            ImGui::TableSetupColumn("Name",         ImGuiTableColumnFlags_WidthStretch);
+            ImGui::TableHeadersRow();
+
+            for (int i = 0; i < static_cast<int>(slaves.size()); ++i)
+            {
+                auto const& slave = slaves[i];
+                ImGui::TableNextRow();
+
+                ImGui::TableNextColumn();
+                char label[32];
+                std::snprintf(label, sizeof(label), "%d", i);
+                bool is_selected = (selected_slave_index_ == i);
+                if (ImGui::Selectable(label, is_selected,
+                        ImGuiSelectableFlags_SpanAllColumns | ImGuiSelectableFlags_AllowOverlap | ImGuiSelectableFlags_AllowDoubleClick))
+                {
+                    selected_slave_index_ = i;
+                    if (ImGui::IsMouseDoubleClicked(0))
+                    {
+                        double_clicked = true;
+                    }
+                }
+
+                ImGui::TableNextColumn();
+                ImGui::Text("0x%04X", slave.address);
+
+                ImGui::TableNextColumn();
+                ImGui::Text("0x%08X", slave.sii.info.vendor_id);
+
+                ImGui::TableNextColumn();
+                ImGui::Text("0x%08X", slave.sii.info.product_code);
+
+                ImGui::TableNextColumn();
+                ImGui::Text("%s", resolveString(slave.sii.strings, slave.sii.general.device_name_id));
+            }
+            ImGui::EndTable();
+        }
+        return double_clicked;
+    }
+
+    void App::renderDeviceDialog()
+    {
+        char const* title        = nullptr;
+        char const* action_label = nullptr;
+        char const* prompt       = nullptr;
+        ImVec2 size{};
+
+        switch (device_action_)
+        {
+            case DeviceAction::Connect:
+            {
+                title        = "Connect to EtherCAT Network";
+                action_label = "Connect";
+                prompt       = "Select a network interface:";
+                size         = {450, 350};
+                break;
+            }
+            case DeviceAction::Load:
+            {
+                title        = "Load EEPROM from Slave";
+                action_label = "Load";
+                prompt       = "Select the target slave:";
+                size         = {600, 400};
+                break;
+            }
+            case DeviceAction::Flash:
+            {
+                title        = "Flash EEPROM to Slave";
+                action_label = "Flash";
+                prompt       = "Select the target slave:";
+                size         = {600, 400};
+                break;
+            }
+        }
+
+        if (show_device_dialog_)
+        {
+            ImGui::OpenPopup(title);
+            show_device_dialog_ = false;
+        }
+
+        ImVec2 center = ImGui::GetMainViewport()->GetCenter();
+        ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
+        ImGui::SetNextWindowSize(size, ImGuiCond_Appearing);
+
+        if (not ImGui::BeginPopupModal(title))
+        {
+            return;
+        }
+
+        if (device_action_ == DeviceAction::Flash)
+        {
+            ImGui::TextColored(COLOR_YELLOW,
+                "WARNING: This will overwrite the slave's EEPROM with the current editor content.");
+            ImGui::Separator();
+        }
+
+        ImGui::Text("%s", prompt);
+        ImGui::Separator();
+
+        bool confirmed = false;
+        if (device_action_ == DeviceAction::Connect)
+        {
+            confirmed = renderInterfaceList();
+        }
+        else
+        {
+            confirmed = renderSlaveTable() and selected_slave_index_ >= 0;
+        }
+
+        if (not device_error_.empty())
+        {
+            ImGui::TextColored(COLOR_RED, "%s", device_error_.c_str());
+        }
+
+        bool can_act = (selected_slave_index_ >= 0);
+        if (not can_act) { ImGui::BeginDisabled(); }
+        if (confirmed or ImGui::Button(action_label, ImVec2(120, 0)))
+        {
+            switch (device_action_)
+            {
+                case DeviceAction::Connect:
+                {
+                    connectToInterface(cached_interfaces_[selected_slave_index_].name);
+                    break;
+                }
+                case DeviceAction::Load:
+                {
+                    loadFromSlave(selected_slave_index_);
+                    break;
+                }
+                case DeviceAction::Flash:
+                {
+                    flashToSlave(selected_slave_index_);
+                    break;
+                }
+            }
+            ImGui::CloseCurrentPopup();
+        }
+        if (not can_act)
+        {
+            ImGui::EndDisabled();
+        }
+
+        ImGui::SameLine();
+        if (ImGui::Button("Cancel", ImVec2(120, 0)))
+        {
+            ImGui::CloseCurrentPopup();
+        }
+
+        ImGui::EndPopup();
+    }
+
+#ifdef __linux__
+    static std::string buildSetcapCommand(std::string const& exe_path)
+    {
+        std::string setcap = "/usr/sbin/setcap cap_net_raw,cap_net_admin+ep " + exe_path;
+
+        // pkexec (PolicyKit)
+        if (std::system("which pkexec >/dev/null 2>&1") == 0)
+        {
+            return "pkexec " + setcap;
+        }
+
+        // kdesu (KDE) — search known locations
+        constexpr char const* KDESU_PATHS[] =
+        {
+            "/usr/lib/x86_64-linux-gnu/libexec/kf6/kdesu",
+            "/usr/lib/x86_64-linux-gnu/libexec/kf5/kdesu",
+            "/usr/lib/libexec/kf6/kdesu",
+            "/usr/lib/libexec/kf5/kdesu",
+        };
+        for (auto const* kdesu : KDESU_PATHS)
+        {
+            if (access(kdesu, X_OK) == 0)
+            {
+                return std::string(kdesu) + " -c \"" + setcap + "\"";
+            }
+        }
+
+        return {};
+    }
+#endif
+
+    void App::renderPrivilegeDialog()
+    {
+        if (needs_privilege_escalation_.load() and not isBusy())
+        {
+            show_privilege_dialog_ = true;
+            needs_privilege_escalation_ = false;
+        }
+
+        if (show_privilege_dialog_)
+        {
+            ImGui::OpenPopup("Privilege Required");
+            show_privilege_dialog_ = false;
+        }
+
+        ImVec2 center = ImGui::GetMainViewport()->GetCenter();
+        ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
+        ImGui::SetNextWindowSize(ImVec2(520, 0), ImGuiCond_Always);
+
+        if (ImGui::BeginPopupModal("Privilege Required"))
+        {
+            ImGui::TextWrapped(
+                "Raw Ethernet access requires the CAP_NET_RAW capability.\n\n"
+                "Click \"Grant\" to set the capability on this executable "
+                "(you will be prompted for your password by the system).");
+
+            ImGui::Spacing();
+            ImGui::Separator();
+            ImGui::Spacing();
+
+#ifdef __linux__
+            char exe_buf[PATH_MAX];
+            ssize_t exe_len = readlink("/proc/self/exe", exe_buf, sizeof(exe_buf) - 1);
+            bool have_path = (exe_len > 0);
+            if (have_path)
+            {
+                exe_buf[exe_len] = '\0';
+            }
+
+            std::string cmd = have_path ? buildSetcapCommand(exe_buf) : std::string{};
+
+            if (privilege_granted_)
+            {
+                ImGui::TextColored(COLOR_GREEN,
+                    "Capability granted successfully!");
+                ImGui::Spacing();
+                ImGui::TextWrapped(
+                    "The application needs to restart to apply the new privileges.");
+
+                ImGui::Spacing();
+                if (ImGui::Button("Restart Now", ImVec2(160, 0)))
+                {
+                    char* args[] = {exe_buf, nullptr};
+                    execv(exe_buf, args);
+                    // If execv fails, tell the user
+                    privilege_error_ = "Restart failed. Please close and reopen the application.";
+                    privilege_granted_ = false;
+                }
+            }
+            else
+            {
+                if (cmd.empty())
+                {
+                    ImGui::BeginDisabled();
+                }
+                if (ImGui::Button("Grant Capability", ImVec2(160, 0)))
+                {
+                    int ret = std::system(cmd.c_str());
+                    if (ret == 0)
+                    {
+                        privilege_granted_ = true;
+                    }
+                    else
+                    {
+                        privilege_error_ = std::string("Failed to set capability. Run manually:\n"
+                                                        "  sudo /usr/sbin/setcap cap_net_raw,cap_net_admin+ep ") + exe_buf;
+                    }
+                }
+                if (cmd.empty())
+                {
+                    ImGui::EndDisabled();
+                }
+
+                if (cmd.empty() and have_path)
+                {
+                    ImGui::SameLine();
+                    ImGui::TextDisabled("(no pkexec/kdesu/zenity found)");
+                    ImGui::TextWrapped("Run manually:  sudo /usr/sbin/setcap cap_net_raw,cap_net_admin+ep %s", exe_buf);
+                }
+
+                if (not privilege_error_.empty())
+                {
+                    ImGui::TextColored(COLOR_YELLOW, "%s", privilege_error_.c_str());
+                }
+            }
+#else
+            ImGui::TextDisabled("Automatic privilege escalation is only available on Linux.");
+#endif
+
+            ImGui::SameLine();
+            if (ImGui::Button("Cancel", ImVec2(120, 0)))
+            {
+                privilege_granted_ = false;
+                privilege_error_.clear();
+                ImGui::CloseCurrentPopup();
+            }
+
+            ImGui::EndPopup();
+        }
+    }
+
+}
diff --git a/tools/eeprom_editor/App.h b/tools/eeprom_editor/App.h
new file mode 100644
index 00000000..c221d01b
--- /dev/null
+++ b/tools/eeprom_editor/App.h
@@ -0,0 +1,112 @@
+#ifndef KICKCAT_EEPROM_EDITOR_APP_H
+#define KICKCAT_EEPROM_EDITOR_APP_H
+
+#include <atomic>
+#include <memory>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include "imgui.h"
+#include "vendor/imgui_memory_editor.h"
+
+#include "kickcat/AbstractSocket.h"
+#include "kickcat/OS/Mutex.h"
+#include "kickcat/SIIParser.h"
+
+namespace kickcat
+{
+    class Bus;
+    class Link;
+}
+
+namespace kickcat::eeprom_editor
+{
+    enum class Category
+    {
+        Info,
+        Strings,
+        General,
+        SyncManagers,
+        FMMU,
+        TxPDO,
+        RxPDO
+    };
+
+    enum class DeviceAction { Connect, Load, Flash };
+
+    class App
+    {
+    public:
+        App();
+        ~App();
+
+        void render();
+
+    private:
+        void newFile();
+        void openFile();
+        void saveFile();
+        void saveFileAs();
+
+        void openFilePath(std::string const& path);
+        void saveFilePath(std::string const& path);
+
+        // Device operations
+        bool isConnected() const;
+        bool isBusy() const;
+        void connectToInterface(std::string const& name);
+        void disconnect();
+        void loadFromSlave(int slave_index);
+        void flashToSlave(int slave_index);
+        void joinWorker();
+        void finalizeWorker();
+
+        // Rendering
+        void renderMenuBar();
+        void renderSidebar();
+        void renderContentPanel();
+        void renderHexPanel();
+        void renderStatusBar();
+        void renderDeviceDialog();
+        bool renderInterfaceList();  // returns true on double-click
+        bool renderSlaveTable();     // returns true on double-click
+        void renderPrivilegeDialog();
+
+        // EEPROM state
+        eeprom::SII sii_{};
+        std::vector<uint8_t> serialized_;
+        std::string file_path_;
+        bool modified_{false};
+        Category active_category_{Category::Info};
+        MemoryEditor mem_edit_;
+
+        // EtherCAT connection
+        std::shared_ptr<Link> link_;
+        std::unique_ptr<Bus> bus_;
+        std::string connected_interface_;
+
+        // Dialog state
+        bool show_device_dialog_{false};
+        DeviceAction device_action_{DeviceAction::Connect};
+        int selected_slave_index_{-1};
+        std::string device_error_;
+        std::vector<NetworkInterface> cached_interfaces_;
+
+        // Privilege escalation
+        bool show_privilege_dialog_{false};
+        bool privilege_granted_{false};
+        std::string privilege_error_;
+        std::atomic<bool> needs_privilege_escalation_{false};
+
+        // Background worker state
+        std::thread worker_;
+        std::atomic<float> worker_progress_{0.0f};
+        std::atomic<bool> worker_done_{false};
+        Mutex worker_status_mutex_;
+        std::string worker_status_;
+        std::string worker_error_;
+    };
+}
+
+#endif
diff --git a/tools/eeprom_editor/CMakeLists.txt b/tools/eeprom_editor/CMakeLists.txt
new file mode 100644
index 00000000..84429766
--- /dev/null
+++ b/tools/eeprom_editor/CMakeLists.txt
@@ -0,0 +1,51 @@
+find_package(imgui REQUIRED CONFIG)
+find_package(OpenGL REQUIRED)
+find_package(portable-file-dialogs REQUIRED CONFIG)
+
+# GLFW via FetchContent — the Conan glfw recipe pulls xorg/system which
+# demands dozens of X11 -dev packages that are not actually needed.
+include(FetchContent)
+set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
+set(GLFW_BUILD_TESTS    OFF CACHE BOOL "" FORCE)
+set(GLFW_BUILD_DOCS     OFF CACHE BOOL "" FORCE)
+set(GLFW_INSTALL        OFF CACHE BOOL "" FORCE)
+FetchContent_Declare(glfw
+    GIT_REPOSITORY https://github.com/glfw/glfw.git
+    GIT_TAG        3.4
+)
+FetchContent_MakeAvailable(glfw)
+
+# ImGui backend sources shipped in the Conan package under res/bindings/
+get_filename_component(_IMGUI_PKG_DIR "${imgui_INCLUDE_DIR}" DIRECTORY)
+set(IMGUI_RES_DIR "${_IMGUI_PKG_DIR}/res")
+set(IMGUI_BACKENDS_DIR "${IMGUI_RES_DIR}/bindings")
+
+add_executable(eeprom_editor
+    main.cc
+    App.cc
+    EditorUtils.cc
+    InfoEditor.cc
+    StringsEditor.cc
+    GeneralEditor.cc
+    SyncManagerEditor.cc
+    FMMUEditor.cc
+    PDOEditor.cc
+    ${IMGUI_BACKENDS_DIR}/imgui_impl_glfw.cpp
+    ${IMGUI_BACKENDS_DIR}/imgui_impl_opengl3.cpp
+    ${IMGUI_RES_DIR}/misc/cpp/imgui_stdlib.cpp
+)
+
+target_include_directories(eeprom_editor PRIVATE
+    ${IMGUI_BACKENDS_DIR}
+    ${IMGUI_RES_DIR}
+)
+
+target_link_libraries(eeprom_editor PRIVATE
+    kickcat
+    imgui::imgui
+    glfw
+    OpenGL::GL
+    portable-file-dialogs::portable-file-dialogs
+)
+
+set_kickcat_properties(eeprom_editor)
diff --git a/tools/eeprom_editor/EditorUtils.cc b/tools/eeprom_editor/EditorUtils.cc
new file mode 100644
index 00000000..6f9570f4
--- /dev/null
+++ b/tools/eeprom_editor/EditorUtils.cc
@@ -0,0 +1,51 @@
+#include "Editors.h"
+
+namespace kickcat::eeprom_editor
+{
+    char const* resolveString(std::vector<std::string> const& strings, uint8_t index)
+    {
+        if (index >= strings.size())
+        {
+            return "(invalid)";
+        }
+        if (index == 0)
+        {
+            return "(empty)";
+        }
+        return strings[index].c_str();
+    }
+
+    bool stringIndexInput(char const* label, uint8_t* index,
+                          std::vector<std::string> const& strings)
+    {
+        bool out_of_range = (*index >= strings.size()) and (*index != 0);
+
+        if (out_of_range)
+        {
+            ImGui::PushStyleColor(ImGuiCol_Border, COLOR_RED);
+        }
+
+        ImGui::SetNextItemWidth(60.0f);
+        bool changed = ImGui::InputScalar(label, ImGuiDataType_U8, index);
+
+        if (out_of_range)
+        {
+            ImGui::PopStyleColor();
+        }
+
+        ImGui::SameLine();
+        ImGui::TextDisabled("-> %s", resolveString(strings, *index));
+
+        return changed;
+    }
+
+    void tooltipMarker(char const* desc)
+    {
+        ImGui::SameLine();
+        ImGui::TextDisabled("(?)");
+        if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort))
+        {
+            ImGui::SetTooltip("%s", desc);
+        }
+    }
+}
diff --git a/tools/eeprom_editor/Editors.h b/tools/eeprom_editor/Editors.h
new file mode 100644
index 00000000..269faaea
--- /dev/null
+++ b/tools/eeprom_editor/Editors.h
@@ -0,0 +1,80 @@
+#ifndef KICKCAT_EEPROM_EDITOR_EDITORS_H
+#define KICKCAT_EEPROM_EDITOR_EDITORS_H
+
+#include <cinttypes>
+#include <cstdint>
+#include <cstdio>
+#include <cstdlib>
+#include <string>
+#include <vector>
+
+#include "imgui.h"
+
+#include "kickcat/SIIParser.h"
+
+namespace kickcat::eeprom_editor
+{
+    constexpr ImVec4 COLOR_RED    {0.88f, 0.33f, 0.33f, 1.0f};
+    constexpr ImVec4 COLOR_GREEN  {0.31f, 0.79f, 0.41f, 1.0f};
+    constexpr ImVec4 COLOR_YELLOW {0.88f, 0.75f, 0.31f, 1.0f};
+    constexpr ImVec4 COLOR_BLUE   {0.55f, 0.75f, 0.95f, 1.0f};
+    constexpr ImVec4 COLOR_GREY   {0.65f, 0.65f, 0.65f, 1.0f};
+    constexpr ImVec4 COLOR_DIM    {0.55f, 0.55f, 0.55f, 1.0f};
+    constexpr ImVec4 COLOR_TITLE  {0.42f, 0.55f, 0.84f, 1.0f};
+
+    char const* resolveString(std::vector<std::string> const& strings, uint8_t index);
+    bool stringIndexInput(char const* label, uint8_t* index,
+                          std::vector<std::string> const& strings);
+    void tooltipMarker(char const* desc);
+
+    template <typename T, typename Setter>
+    bool fieldInput(char const* label, T value, Setter setter, ImGuiDataType data_type,
+                    char const* fmt = nullptr, ImGuiInputTextFlags flags = ImGuiInputTextFlags_None)
+    {
+        if (ImGui::InputScalar(label, data_type, &value, nullptr, nullptr, fmt, flags))
+        {
+            setter(value);
+            return true;
+        }
+        return false;
+    }
+
+    // InputScalar mangles "0x%04X" format during scan sanitization, making hex
+    // fields silently reject edits.  This helper uses InputText + strtoul instead.
+    template <typename T, typename Setter>
+    bool hexFieldInput(char const* label, T value, Setter setter, int width)
+    {
+        char buf[32];
+        std::snprintf(buf, sizeof(buf), "0x%0*" PRIX64, width, static_cast<uint64_t>(value));
+
+        ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsHexadecimal
+                                  | ImGuiInputTextFlags_CharsUppercase
+                                  | ImGuiInputTextFlags_AutoSelectAll;
+
+        if (ImGui::InputText(label, buf, sizeof(buf), flags))
+        {
+            char* end = nullptr;
+            unsigned long long parsed = std::strtoull(buf, &end, 16);
+            if (end != buf)
+            {
+                setter(static_cast<T>(parsed));
+                return true;
+            }
+        }
+        return false;
+    }
+
+    namespace info    { bool render(eeprom::SII& sii); }
+    namespace strings { bool render(eeprom::SII& sii); }
+    namespace general { bool render(eeprom::SII& sii); }
+    namespace syncm   { bool render(eeprom::SII& sii); }
+    namespace fmmu    { bool render(eeprom::SII& sii); }
+
+    namespace pdo
+    {
+        enum class Direction { Tx, Rx };
+        bool render(eeprom::SII& sii, Direction direction);
+    }
+}
+
+#endif
diff --git a/tools/eeprom_editor/FMMUEditor.cc b/tools/eeprom_editor/FMMUEditor.cc
new file mode 100644
index 00000000..31edece6
--- /dev/null
+++ b/tools/eeprom_editor/FMMUEditor.cc
@@ -0,0 +1,85 @@
+#include <array>
+
+#include "Editors.h"
+
+namespace kickcat::eeprom_editor::fmmu
+{
+    constexpr std::array FMMU_TYPES =
+    {
+        "Not used (0)",
+        "Outputs (1)",
+        "Inputs (2)",
+        "SyncM Status (3)",
+    };
+
+    bool render(eeprom::SII& sii)
+    {
+        bool changed = false;
+        auto& fmmus = sii.fmmus;
+
+        ImGui::TextColored(COLOR_TITLE, "FMMU -- Category 40");
+        ImGui::Separator();
+
+        constexpr ImGuiTableFlags table_flags =
+            ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingFixedFit;
+
+        if (ImGui::BeginTable("##fmmu_table", 3, table_flags))
+        {
+            ImGui::TableSetupColumn("#",        ImGuiTableColumnFlags_WidthFixed, 40.0f);
+            ImGui::TableSetupColumn("Type",     ImGuiTableColumnFlags_WidthFixed, 180.0f);
+            ImGui::TableSetupColumn("##actions", ImGuiTableColumnFlags_WidthFixed, 40.0f);
+            ImGui::TableHeadersRow();
+
+            int delete_idx = -1;
+
+            for (std::size_t i = 0; i < fmmus.size(); ++i)
+            {
+                ImGui::PushID(static_cast<int>(i));
+                ImGui::TableNextRow();
+
+                ImGui::TableSetColumnIndex(0);
+                ImGui::Text("%zu", i);
+
+                ImGui::TableSetColumnIndex(1);
+                {
+                    int type_val = fmmus[i];
+                    if (type_val >= static_cast<int>(FMMU_TYPES.size()))
+                    {
+                        type_val = 0;
+                    }
+                    ImGui::SetNextItemWidth(-FLT_MIN);
+                    if (ImGui::Combo("##type", &type_val, FMMU_TYPES.data(), static_cast<int>(FMMU_TYPES.size())))
+                    {
+                        fmmus[i] = static_cast<uint8_t>(type_val);
+                        changed = true;
+                    }
+                }
+
+                ImGui::TableSetColumnIndex(2);
+                if (ImGui::SmallButton("Del"))
+                {
+                    delete_idx = static_cast<int>(i);
+                }
+
+                ImGui::PopID();
+            }
+
+            ImGui::EndTable();
+
+            if (delete_idx >= 0)
+            {
+                fmmus.erase(fmmus.begin() + delete_idx);
+                changed = true;
+            }
+        }
+
+        ImGui::Spacing();
+        if (ImGui::Button("Add FMMU"))
+        {
+            fmmus.push_back(0);
+            changed = true;
+        }
+
+        return changed;
+    }
+}
diff --git a/tools/eeprom_editor/GeneralEditor.cc b/tools/eeprom_editor/GeneralEditor.cc
new file mode 100644
index 00000000..e98307c2
--- /dev/null
+++ b/tools/eeprom_editor/GeneralEditor.cc
@@ -0,0 +1,123 @@
+#include <array>
+
+#include "Editors.h"
+
+namespace kickcat::eeprom_editor::general
+{
+    constexpr std::array PORT_TYPES =
+    {
+        "Not implemented (0)",
+        "Not configured (1)",
+        "EBUS (2)",
+        "MII (3)",
+    };
+
+    bool render(eeprom::SII& sii)
+    {
+        bool changed = false;
+        auto& g = sii.general;
+
+        ImGui::TextColored(COLOR_TITLE, "General -- Category 30");
+        ImGui::Separator();
+
+        if (ImGui::CollapsingHeader("String References", ImGuiTreeNodeFlags_DefaultOpen))
+        {
+            changed |= stringIndexInput("Group Info##gen",   &g.group_info_id,   sii.strings);
+            changed |= stringIndexInput("Image Name##gen",   &g.image_name_id,   sii.strings);
+            changed |= stringIndexInput("Device Order##gen", &g.device_order_id, sii.strings);
+            changed |= stringIndexInput("Device Name##gen",  &g.device_name_id,  sii.strings);
+        }
+
+        if (ImGui::CollapsingHeader("CoE Details", ImGuiTreeNodeFlags_DefaultOpen))
+        {
+            auto bitfield_check = [&](char const* label, bool value, auto setter) -> bool
+            {
+                bool on = value;
+                if (ImGui::Checkbox(label, &on))
+                {
+                    int val = 0;
+                    if (on)
+                    {
+                        val = 1;
+                    }
+                    setter(val);
+                    return true;
+                }
+                return false;
+            };
+
+            changed |= bitfield_check("SDO Set",             g.SDO_set,             [&](int v){ g.SDO_set = v; });
+            changed |= bitfield_check("SDO Info",            g.SDO_info,            [&](int v){ g.SDO_info = v; });
+            changed |= bitfield_check("PDO Assign",          g.PDO_assign,          [&](int v){ g.PDO_assign = v; });
+            changed |= bitfield_check("PDO Configuration",   g.PDO_configuration,   [&](int v){ g.PDO_configuration = v; });
+            changed |= bitfield_check("PDO Upload",          g.PDO_upload,          [&](int v){ g.PDO_upload = v; });
+            changed |= bitfield_check("SDO Complete Access",  g.SDO_complete_access, [&](int v){ g.SDO_complete_access = v; });
+        }
+
+        if (ImGui::CollapsingHeader("Protocol Details"))
+        {
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("FoE Details", g.FoE_details,
+                [&](uint8_t v){ g.FoE_details = v; }, ImGuiDataType_U8);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("EoE Details", g.EoE_details,
+                [&](uint8_t v){ g.EoE_details = v; }, ImGuiDataType_U8);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("SoE Channels", g.SoE_channels,
+                [&](uint8_t v){ g.SoE_channels = v; }, ImGuiDataType_U8);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("DS402 Channels", g.DS402_channels,
+                [&](uint8_t v){ g.DS402_channels = v; }, ImGuiDataType_U8);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Sysman Class", g.SysmanClass,
+                [&](uint8_t v){ g.SysmanClass = v; }, ImGuiDataType_U8);
+        }
+
+        if (ImGui::CollapsingHeader("Port Types", ImGuiTreeNodeFlags_DefaultOpen))
+        {
+            auto port_dropdown = [&](char const* label, int current_val, auto setter) -> bool
+            {
+                int val = current_val;
+                if (val >= static_cast<int>(PORT_TYPES.size()))
+                {
+                    val = 0;
+                }
+
+                ImGui::SetNextItemWidth(180.0f);
+                if (ImGui::Combo(label, &val, PORT_TYPES.data(), static_cast<int>(PORT_TYPES.size())))
+                {
+                    setter(val);
+                    return true;
+                }
+                return false;
+            };
+
+            changed |= port_dropdown("Port 0##port", g.port_0, [&](int v){ g.port_0 = v; });
+            changed |= port_dropdown("Port 1##port", g.port_1, [&](int v){ g.port_1 = v; });
+            changed |= port_dropdown("Port 2##port", g.port_2, [&](int v){ g.port_2 = v; });
+            changed |= port_dropdown("Port 3##port", g.port_3, [&](int v){ g.port_3 = v; });
+        }
+
+        if (ImGui::CollapsingHeader("Misc"))
+        {
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("E-Bus Current (mA)", g.current_on_ebus,
+                [&](int16_t v){ g.current_on_ebus = v; }, ImGuiDataType_S16);
+            tooltipMarker("Negative = feeding current into bus");
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("Flags##gen", g.flags,
+                [&](uint8_t v){ g.flags = v; }, 2);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("Phys. Memory Addr", g.physical_memory_address,
+                [&](uint16_t v){ g.physical_memory_address = v; }, 4);
+        }
+
+        return changed;
+    }
+}
diff --git a/tools/eeprom_editor/InfoEditor.cc b/tools/eeprom_editor/InfoEditor.cc
new file mode 100644
index 00000000..2d72659d
--- /dev/null
+++ b/tools/eeprom_editor/InfoEditor.cc
@@ -0,0 +1,159 @@
+#include "Editors.h"
+
+namespace kickcat::eeprom_editor::info
+{
+    bool render(eeprom::SII& sii)
+    {
+        bool changed = false;
+        auto& info = sii.info;
+
+        ImGui::TextColored(COLOR_TITLE, "Info (Header) -- Words 0x00-0x3F");
+        ImGui::Separator();
+        ImGui::Spacing();
+
+        if (ImGui::CollapsingHeader("Config Data", ImGuiTreeNodeFlags_DefaultOpen))
+        {
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("PDI Control", info.pdi_control,
+                [&](uint16_t v){ info.pdi_control = v; }, 4);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("PDI Config", info.pdi_configuration,
+                [&](uint16_t v){ info.pdi_configuration = v; }, 4);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Sync Impulse", info.sync_impulse_length,
+                [&](uint16_t v){ info.sync_impulse_length = v; }, ImGuiDataType_U16);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("PDI Config 2", info.pdi_configuration_2,
+                [&](uint16_t v){ info.pdi_configuration_2 = v; }, 4);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Station Alias", info.station_alias,
+                [&](uint16_t v){ info.station_alias = v; }, ImGuiDataType_U16);
+
+            uint8_t crc = static_cast<uint8_t>(info.crc);
+            ImGui::SetNextItemWidth(100.0f);
+            ImGui::InputScalar("CRC (auto)", ImGuiDataType_U8, &crc, nullptr, nullptr, "0x%02X",
+                               ImGuiInputTextFlags_ReadOnly);
+            tooltipMarker("CRC-8 over first 7 words, auto-computed on save");
+        }
+
+        if (ImGui::CollapsingHeader("Identity", ImGuiTreeNodeFlags_DefaultOpen))
+        {
+            ImGui::SetNextItemWidth(140.0f);
+            changed |= hexFieldInput("Vendor ID", info.vendor_id,
+                [&](uint32_t v){ info.vendor_id = v; }, 8);
+
+            ImGui::SetNextItemWidth(140.0f);
+            changed |= hexFieldInput("Product Code", info.product_code,
+                [&](uint32_t v){ info.product_code = v; }, 8);
+
+            ImGui::SetNextItemWidth(140.0f);
+            changed |= hexFieldInput("Revision", info.revision_number,
+                [&](uint32_t v){ info.revision_number = v; }, 8);
+
+            ImGui::SetNextItemWidth(140.0f);
+            changed |= hexFieldInput("Serial", info.serial_number,
+                [&](uint32_t v){ info.serial_number = v; }, 8);
+        }
+
+        if (ImGui::CollapsingHeader("Hardware Delays"))
+        {
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Execution Delay", info.execution_delay,
+                [&](uint16_t v){ info.execution_delay = v; }, ImGuiDataType_U16);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Port 0 Delay", info.port0_delay,
+                [&](uint16_t v){ info.port0_delay = v; }, ImGuiDataType_U16);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Port 1 Delay", info.port1_delay,
+                [&](uint16_t v){ info.port1_delay = v; }, ImGuiDataType_U16);
+        }
+
+        if (ImGui::CollapsingHeader("Bootstrap Mailbox"))
+        {
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("Recv Offset##boot", info.bootstrap_recv_mbx_offset,
+                [&](uint16_t v){ info.bootstrap_recv_mbx_offset = v; }, 4);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Recv Size##boot", info.bootstrap_recv_mbx_size,
+                [&](uint16_t v){ info.bootstrap_recv_mbx_size = v; }, ImGuiDataType_U16);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("Send Offset##boot", info.bootstrap_send_mbx_offset,
+                [&](uint16_t v){ info.bootstrap_send_mbx_offset = v; }, 4);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Send Size##boot", info.bootstrap_send_mbx_size,
+                [&](uint16_t v){ info.bootstrap_send_mbx_size = v; }, ImGuiDataType_U16);
+        }
+
+        if (ImGui::CollapsingHeader("Standard Mailbox"))
+        {
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("Recv Offset##std", info.standard_recv_mbx_offset,
+                [&](uint16_t v){ info.standard_recv_mbx_offset = v; }, 4);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Recv Size##std", info.standard_recv_mbx_size,
+                [&](uint16_t v){ info.standard_recv_mbx_size = v; }, ImGuiDataType_U16);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= hexFieldInput("Send Offset##std", info.standard_send_mbx_offset,
+                [&](uint16_t v){ info.standard_send_mbx_offset = v; }, 4);
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Send Size##std", info.standard_send_mbx_size,
+                [&](uint16_t v){ info.standard_send_mbx_size = v; }, ImGuiDataType_U16);
+        }
+
+        if (ImGui::CollapsingHeader("Mailbox Protocols"))
+        {
+            uint16_t proto = info.mailbox_protocol;
+
+            auto check = [&](char const* label, uint16_t bit) -> bool
+            {
+                bool on = (proto & bit) != 0;
+                if (ImGui::Checkbox(label, &on))
+                {
+                    if (on)
+                    {
+                        proto |= bit;
+                    }
+                    else
+                    {
+                        proto &= ~bit;
+                    }
+                    info.mailbox_protocol = proto;
+                    return true;
+                }
+                return false;
+            };
+            changed |= check("AoE", 0x01);
+            changed |= check("EoE", 0x02);
+            changed |= check("CoE", 0x04);
+            changed |= check("FoE", 0x08);
+            changed |= check("SoE", 0x10);
+        }
+
+        if (ImGui::CollapsingHeader("EEPROM"))
+        {
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Size (field)", info.size,
+                [&](uint16_t v){ info.size = v; }, ImGuiDataType_U16);
+            ImGui::SameLine();
+            ImGui::Text("= %u bytes", sii.eepromSizeBytes());
+
+            ImGui::SetNextItemWidth(100.0f);
+            changed |= fieldInput("Version", info.version,
+                [&](uint16_t v){ info.version = v; }, ImGuiDataType_U16);
+        }
+
+        return changed;
+    }
+}
diff --git a/tools/eeprom_editor/PDOEditor.cc b/tools/eeprom_editor/PDOEditor.cc
new file mode 100644
index 00000000..d9f9651b
--- /dev/null
+++ b/tools/eeprom_editor/PDOEditor.cc
@@ -0,0 +1,163 @@
+#include <cstdio>
+
+#include "Editors.h"
+
+namespace kickcat::eeprom_editor::pdo
+{
+    bool render(eeprom::SII& sii, Direction direction)
+    {
+        bool changed = false;
+
+        bool const is_tx = (direction == Direction::Tx);
+
+        char const* title = "RxPDO (Outputs) -- Category 51";
+        auto* mappings_ptr = &sii.RxPDO;
+        if (is_tx)
+        {
+            title        = "TxPDO (Inputs) -- Category 50";
+            mappings_ptr = &sii.TxPDO;
+        }
+        auto& mappings = *mappings_ptr;
+        auto& strings  = sii.strings;
+
+        ImGui::TextColored(COLOR_TITLE, "%s", title);
+        ImGui::Separator();
+
+        int delete_mapping = -1;
+
+        for (std::size_t m = 0; m < mappings.size(); ++m)
+        {
+            ImGui::PushID(static_cast<int>(m));
+            auto& mapping = mappings[m];
+
+            char header_label[128];
+            std::snprintf(header_label, sizeof(header_label), "PDO 0x%04X - %s##m%zu",
+                          mapping.index, resolveString(strings, mapping.name_index), m);
+
+            if (ImGui::CollapsingHeader(header_label, ImGuiTreeNodeFlags_DefaultOpen))
+            {
+                ImGui::Indent(8.0f);
+
+                ImGui::SetNextItemWidth(100.0f);
+                changed |= hexFieldInput("Index##mapping", mapping.index,
+                    [&](uint16_t v){ mapping.index = v; }, 4);
+
+                ImGui::SetNextItemWidth(60.0f);
+                changed |= ImGui::InputScalar("Sync Manager##mapping", ImGuiDataType_U8,
+                                               &mapping.sync_manager);
+
+                ImGui::SetNextItemWidth(60.0f);
+                changed |= ImGui::InputScalar("Synchronization##mapping", ImGuiDataType_U8,
+                                               &mapping.synchronization);
+
+                changed |= stringIndexInput("Name##mapping", &mapping.name_index, strings);
+
+                ImGui::SetNextItemWidth(100.0f);
+                changed |= hexFieldInput("Flags##mapping", mapping.flags,
+                    [&](uint16_t v){ mapping.flags = v; }, 4);
+
+                ImGui::Spacing();
+
+                constexpr ImGuiTableFlags table_flags =
+                    ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg
+                    | ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_Resizable;
+
+                if (ImGui::BeginTable("##entries", 7, table_flags))
+                {
+                    ImGui::TableSetupColumn("Index",     ImGuiTableColumnFlags_WidthFixed, 80.0f);
+                    ImGui::TableSetupColumn("SubIndex",  ImGuiTableColumnFlags_WidthFixed, 70.0f);
+                    ImGui::TableSetupColumn("Name",      ImGuiTableColumnFlags_WidthStretch);
+                    ImGui::TableSetupColumn("DataType",  ImGuiTableColumnFlags_WidthFixed, 70.0f);
+                    ImGui::TableSetupColumn("BitLen",    ImGuiTableColumnFlags_WidthFixed, 60.0f);
+                    ImGui::TableSetupColumn("Flags",     ImGuiTableColumnFlags_WidthFixed, 80.0f);
+                    ImGui::TableSetupColumn("##actions", ImGuiTableColumnFlags_WidthFixed, 40.0f);
+                    ImGui::TableHeadersRow();
+
+                    int delete_entry = -1;
+
+                    for (std::size_t e = 0; e < mapping.entries.size(); ++e)
+                    {
+                        ImGui::PushID(static_cast<int>(e));
+                        ImGui::TableNextRow();
+                        auto& entry = mapping.entries[e];
+
+                        ImGui::TableSetColumnIndex(0);
+                        ImGui::SetNextItemWidth(-FLT_MIN);
+                        changed |= hexFieldInput("##idx", entry.index,
+                            [&](uint16_t v){ entry.index = v; }, 4);
+
+                        ImGui::TableSetColumnIndex(1);
+                        ImGui::SetNextItemWidth(-FLT_MIN);
+                        changed |= fieldInput("##sub", entry.subindex,
+                            [&](uint8_t v){ entry.subindex = v; }, ImGuiDataType_U8);
+
+                        ImGui::TableSetColumnIndex(2);
+                        changed |= stringIndexInput("##name", &entry.name, strings);
+
+                        ImGui::TableSetColumnIndex(3);
+                        ImGui::SetNextItemWidth(-FLT_MIN);
+                        changed |= fieldInput("##dt", entry.data_type,
+                            [&](uint8_t v){ entry.data_type = v; }, ImGuiDataType_U8);
+
+                        ImGui::TableSetColumnIndex(4);
+                        ImGui::SetNextItemWidth(-FLT_MIN);
+                        changed |= fieldInput("##bits", entry.bitlen,
+                            [&](uint8_t v){ entry.bitlen = v; }, ImGuiDataType_U8);
+
+                        ImGui::TableSetColumnIndex(5);
+                        ImGui::SetNextItemWidth(-FLT_MIN);
+                        changed |= hexFieldInput("##fl", entry.flags,
+                            [&](uint16_t v){ entry.flags = v; }, 4);
+
+                        ImGui::TableSetColumnIndex(6);
+                        if (ImGui::SmallButton("Del"))
+                        {
+                            delete_entry = static_cast<int>(e);
+                        }
+
+                        ImGui::PopID();
+                    }
+
+                    ImGui::EndTable();
+
+                    if (delete_entry >= 0)
+                    {
+                        mapping.entries.erase(mapping.entries.begin() + delete_entry);
+                        changed = true;
+                    }
+                }
+
+                if (ImGui::SmallButton("Add Entry"))
+                {
+                    mapping.entries.push_back(eeprom::PDOEntry{});
+                    changed = true;
+                }
+
+                ImGui::SameLine();
+                if (ImGui::SmallButton("Remove Mapping"))
+                {
+                    delete_mapping = static_cast<int>(m);
+                }
+
+                ImGui::Unindent(8.0f);
+            }
+
+            ImGui::PopID();
+        }
+
+        if (delete_mapping >= 0)
+        {
+            mappings.erase(mappings.begin() + delete_mapping);
+            changed = true;
+        }
+
+        ImGui::Spacing();
+        if (ImGui::Button("Add PDO Mapping"))
+        {
+            mappings.push_back(eeprom::PDOMapping{});
+            changed = true;
+        }
+
+        return changed;
+    }
+}
diff --git a/tools/eeprom_editor/StringsEditor.cc b/tools/eeprom_editor/StringsEditor.cc
new file mode 100644
index 00000000..a1e51819
--- /dev/null
+++ b/tools/eeprom_editor/StringsEditor.cc
@@ -0,0 +1,93 @@
+#include "Editors.h"
+
+#include <misc/cpp/imgui_stdlib.h>
+
+namespace kickcat::eeprom_editor::strings
+{
+    bool render(eeprom::SII& sii)
+    {
+        bool changed = false;
+        auto& strings = sii.strings;
+
+        ImGui::TextColored(COLOR_TITLE, "Strings -- Category 10");
+        ImGui::Separator();
+
+        if (strings.empty())
+        {
+            strings.emplace_back();
+        }
+
+        constexpr ImGuiTableFlags table_flags =
+            ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_Resizable;
+
+        if (ImGui::BeginTable("##strings_table", 3, table_flags))
+        {
+            ImGui::TableSetupColumn("Index", ImGuiTableColumnFlags_WidthFixed, 50.0f);
+            ImGui::TableSetupColumn("Value", ImGuiTableColumnFlags_WidthStretch);
+            ImGui::TableSetupColumn("##actions", ImGuiTableColumnFlags_WidthFixed, 60.0f);
+            ImGui::TableHeadersRow();
+
+            int delete_idx = -1;
+
+            for (std::size_t i = 0; i < strings.size(); ++i)
+            {
+                ImGui::PushID(static_cast<int>(i));
+                ImGui::TableNextRow();
+
+                ImGui::TableSetColumnIndex(0);
+                ImGui::Text("%zu", i);
+
+                ImGui::TableSetColumnIndex(1);
+                if (i == 0)
+                {
+                    ImGui::TextDisabled("(reserved empty string)");
+                }
+                else
+                {
+                    ImGui::SetNextItemWidth(-FLT_MIN);
+                    if (ImGui::InputText("##val", &strings[i]))
+                    {
+                        changed = true;
+                    }
+                }
+
+                ImGui::TableSetColumnIndex(2);
+                if (i == 0)
+                {
+                    ImGui::TextDisabled("--");
+                }
+                else
+                {
+                    if (ImGui::SmallButton("Del"))
+                    {
+                        delete_idx = static_cast<int>(i);
+                    }
+                    if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort))
+                    {
+                        ImGui::SetTooltip("Deleting shifts subsequent indices.\n"
+                                          "String references in General/PDO may break.");
+                    }
+                }
+
+                ImGui::PopID();
+            }
+
+            ImGui::EndTable();
+
+            if (delete_idx > 0)
+            {
+                strings.erase(strings.begin() + delete_idx);
+                changed = true;
+            }
+        }
+
+        ImGui::Spacing();
+        if (ImGui::Button("Add String"))
+        {
+            strings.emplace_back("new string");
+            changed = true;
+        }
+
+        return changed;
+    }
+}
diff --git a/tools/eeprom_editor/SyncManagerEditor.cc b/tools/eeprom_editor/SyncManagerEditor.cc
new file mode 100644
index 00000000..980634ef
--- /dev/null
+++ b/tools/eeprom_editor/SyncManagerEditor.cc
@@ -0,0 +1,118 @@
+#include <array>
+
+#include "Editors.h"
+
+namespace kickcat::eeprom_editor::syncm
+{
+    constexpr std::array SM_TYPES =
+    {
+        "Unused (0)",
+        "MailboxOut (1)",
+        "MailboxIn (2)",
+        "Output (3)",
+        "Input (4)",
+    };
+
+    bool render(eeprom::SII& sii)
+    {
+        bool changed = false;
+        auto& sms = sii.syncManagers;
+
+        ImGui::TextColored(COLOR_TITLE, "Sync Managers -- Category 41");
+        ImGui::Separator();
+
+        constexpr ImGuiTableFlags table_flags =
+            ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg | ImGuiTableFlags_Resizable
+            | ImGuiTableFlags_SizingFixedFit;
+
+        if (ImGui::BeginTable("##sm_table", 8, table_flags))
+        {
+            ImGui::TableSetupColumn("#",           ImGuiTableColumnFlags_WidthFixed, 30.0f);
+            ImGui::TableSetupColumn("Start Addr",  ImGuiTableColumnFlags_WidthFixed, 80.0f);
+            ImGui::TableSetupColumn("Length",       ImGuiTableColumnFlags_WidthFixed, 70.0f);
+            ImGui::TableSetupColumn("Control",      ImGuiTableColumnFlags_WidthFixed, 65.0f);
+            ImGui::TableSetupColumn("Status",       ImGuiTableColumnFlags_WidthFixed, 65.0f);
+            ImGui::TableSetupColumn("Enable",       ImGuiTableColumnFlags_WidthFixed, 55.0f);
+            ImGui::TableSetupColumn("Type",         ImGuiTableColumnFlags_WidthFixed, 150.0f);
+            ImGui::TableSetupColumn("##actions",    ImGuiTableColumnFlags_WidthFixed, 40.0f);
+            ImGui::TableHeadersRow();
+
+            int delete_idx = -1;
+
+            for (std::size_t i = 0; i < sms.size(); ++i)
+            {
+                ImGui::PushID(static_cast<int>(i));
+                ImGui::TableNextRow();
+                auto& sm = sms[i];
+
+                ImGui::TableSetColumnIndex(0);
+                ImGui::Text("%zu", i);
+
+                ImGui::TableSetColumnIndex(1);
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                changed |= hexFieldInput("##addr", sm.start_address,
+                    [&](uint16_t v){ sm.start_address = v; }, 4);
+
+                ImGui::TableSetColumnIndex(2);
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                changed |= fieldInput("##len", sm.length,
+                    [&](uint16_t v){ sm.length = v; }, ImGuiDataType_U16);
+
+                ImGui::TableSetColumnIndex(3);
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                changed |= hexFieldInput("##ctrl", sm.control_register,
+                    [&](uint8_t v){ sm.control_register = v; }, 2);
+
+                ImGui::TableSetColumnIndex(4);
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                changed |= hexFieldInput("##stat", sm.status_register,
+                    [&](uint8_t v){ sm.status_register = v; }, 2);
+
+                ImGui::TableSetColumnIndex(5);
+                ImGui::SetNextItemWidth(-FLT_MIN);
+                changed |= fieldInput("##en", sm.enable,
+                    [&](uint8_t v){ sm.enable = v; }, ImGuiDataType_U8);
+
+                ImGui::TableSetColumnIndex(6);
+                {
+                    int type_val = sm.type;
+                    if (type_val >= static_cast<int>(SM_TYPES.size()))
+                    {
+                        type_val = 0;
+                    }
+                    ImGui::SetNextItemWidth(-FLT_MIN);
+                    if (ImGui::Combo("##type", &type_val, SM_TYPES.data(), static_cast<int>(SM_TYPES.size())))
+                    {
+                        sm.type = static_cast<uint8_t>(type_val);
+                        changed = true;
+                    }
+                }
+
+                ImGui::TableSetColumnIndex(7);
+                if (ImGui::SmallButton("Del"))
+                {
+                    delete_idx = static_cast<int>(i);
+                }
+
+                ImGui::PopID();
+            }
+
+            ImGui::EndTable();
+
+            if (delete_idx >= 0)
+            {
+                sms.erase(sms.begin() + delete_idx);
+                changed = true;
+            }
+        }
+
+        ImGui::Spacing();
+        if (ImGui::Button("Add Sync Manager"))
+        {
+            sms.push_back(eeprom::SyncManagerEntry{});
+            changed = true;
+        }
+
+        return changed;
+    }
+}
diff --git a/tools/eeprom_editor/backend/imgui_impl_glfw.cpp b/tools/eeprom_editor/backend/imgui_impl_glfw.cpp
new file mode 100644
index 00000000..da54589f
--- /dev/null
+++ b/tools/eeprom_editor/backend/imgui_impl_glfw.cpp
@@ -0,0 +1,1094 @@
+// dear imgui: Platform Backend for GLFW
+// This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
+// (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
+// (Requires: GLFW 3.0+. Prefer GLFW 3.3+/3.4+ for full feature support.)
+
+// Implemented features:
+//  [X] Platform: Clipboard support.
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only).
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors) with GLFW 3.1+. Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Multiple Dear ImGui contexts support.
+// Missing features or Issues:
+//  [ ] Platform: Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
+//  [ ] Platform: Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// About Emscripten support:
+// - Emscripten provides its own GLFW (3.2.1) implementation (syntax: "-sUSE_GLFW=3"), but Joystick is broken and several features are not supported (multiple windows, clipboard, timer, etc.)
+// - A third-party Emscripten GLFW (3.4.0) implementation (syntax: "--use-port=contrib.glfw3") fixes the Joystick issue and implements all relevant features for the browser.
+// See https://github.com/pongasoft/emscripten-glfw/blob/master/docs/Comparison.md for details.
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2026-02-10: Try to set IMGUI_IMPL_GLFW_DISABLE_X11 / IMGUI_IMPL_GLFW_DISABLE_WAYLAND automatically if corresponding headers are not accessible. (#9225)
+//  2025-12-12: Added IMGUI_IMPL_GLFW_DISABLE_X11 / IMGUI_IMPL_GLFW_DISABLE_WAYLAND to forcefully disable either.
+//  2025-12-10: Avoid repeated glfwSetCursor()/glfwSetInputMode() calls when unnecessary. Lowers overhead for very high framerates (e.g. 10k+ FPS).
+//  2025-11-06: Lower minimum requirement to GLFW 3.0. Though a recent version e.g GLFW 3.4 is highly recommended.
+//  2025-09-18: Call platform_io.ClearPlatformHandlers() on shutdown.
+//  2025-09-15: Content Scales are always reported as 1.0 on Wayland. FramebufferScale are always reported as 1.0 on X11. (#8920, #8921)
+//  2025-07-08: Made ImGui_ImplGlfw_GetContentScaleForWindow(), ImGui_ImplGlfw_GetContentScaleForMonitor() helpers return 1.0f on Emscripten and Android platforms, matching macOS logic. (#8742, #8733)
+//  2025-06-18: Added support for multiple Dear ImGui contexts. (#8676, #8239, #8069)
+//  2025-06-11: Added ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window) and ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor) helper to facilitate making DPI-aware apps.
+//  2025-03-10: Map GLFW_KEY_WORLD_1 and GLFW_KEY_WORLD_2 into ImGuiKey_Oem102.
+//  2025-03-03: Fixed clipboard handler assertion when using GLFW <= 3.2.1 compiled with asserts enabled.
+//  2024-08-22: Moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
+//               - io.GetClipboardTextFn    -> platform_io.Platform_GetClipboardTextFn
+//               - io.SetClipboardTextFn    -> platform_io.Platform_SetClipboardTextFn
+//               - io.PlatformOpenInShellFn -> platform_io.Platform_OpenInShellFn
+//  2024-07-31: Added ImGui_ImplGlfw_Sleep() helper function for usage by our examples app, since GLFW doesn't provide one.
+//  2024-07-08: *BREAKING* Renamed ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback to ImGui_ImplGlfw_InstallEmscriptenCallbacks(), added GLFWWindow* parameter.
+//  2024-07-08: Emscripten: Added support for GLFW3 contrib port (GLFW 3.4.0 features + bug fixes): to enable, replace -sUSE_GLFW=3 with --use-port=contrib.glfw3 (requires emscripten 3.1.59+) (https://github.com/pongasoft/emscripten-glfw)
+//  2024-07-02: Emscripten: Added io.PlatformOpenInShellFn() handler for Emscripten versions.
+//  2023-12-19: Emscripten: Added ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback() to register canvas selector and auto-resize GLFW window.
+//  2023-10-05: Inputs: Added support for extra ImGuiKey values: F13 to F24 function keys.
+//  2023-07-18: Inputs: Revert ignoring mouse data on GLFW_CURSOR_DISABLED as it can be used differently. User may set ImGuiConfigFLags_NoMouse if desired. (#5625, #6609)
+//  2023-06-12: Accept glfwGetTime() not returning a monotonically increasing value. This seems to happens on some Windows setup when peripherals disconnect, and is likely to also happen on browser + Emscripten. (#6491)
+//  2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen/ImGuiMouseSource_Pen on Windows ONLY, using a custom WndProc hook. (#2702)
+//  2023-03-16: Inputs: Fixed key modifiers handling on secondary viewports (docking branch). Broken on 2023/01/04. (#6248, #6034)
+//  2023-03-14: Emscripten: Avoid using glfwGetError() and glfwGetGamepadState() which are not correctly implemented in Emscripten emulation. (#6240)
+//  2023-02-03: Emscripten: Registering custom low-level mouse wheel handler to get more accurate scrolling impulses on Emscripten. (#4019, #6096)
+//  2023-01-04: Inputs: Fixed mods state on Linux when using Alt-GR text input (e.g. German keyboard layout), could lead to broken text input. Revert a 2022/01/17 change were we resumed using mods provided by GLFW, turns out they were faulty.
+//  2022-11-22: Perform a dummy glfwGetError() read to cancel missing names with glfwGetKeyName(). (#5908)
+//  2022-10-18: Perform a dummy glfwGetError() read to cancel missing mouse cursors errors. Using GLFW_VERSION_COMBINED directly. (#5785)
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported).
+//  2022-09-01: Inputs: Honor GLFW_CURSOR_DISABLED by not setting mouse position *EDIT* Reverted 2023-07-18.
+//  2022-04-30: Inputs: Fixed ImGui_ImplGlfw_TranslateUntranslatedKey() for lower case letters on OSX.
+//  2022-03-23: Inputs: Fixed a regression in 1.87 which resulted in keyboard modifiers events being reported incorrectly on Linux/X11.
+//  2022-02-07: Added ImGui_ImplGlfw_InstallCallbacks()/ImGui_ImplGlfw_RestoreCallbacks() helpers to facilitate user installing callbacks after initializing backend.
+//  2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
+//  2021-01-20: Inputs: calling new io.AddKeyAnalogEvent() for gamepad support, instead of writing directly to io.NavInputs[].
+//  2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+).
+//  2022-01-17: Inputs: always update key mods next and before key event (not in NewFrame) to fix input queue with very low framerates.
+//  2022-01-12: *BREAKING CHANGE*: Now using glfwSetCursorPosCallback(). If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetCursorPosCallback() and forward it to the backend via ImGui_ImplGlfw_CursorPosCallback().
+//  2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
+//  2022-01-05: Inputs: Converting GLFW untranslated keycodes back to translated keycodes (in the ImGui_ImplGlfw_KeyCallback() function) in order to match the behavior of every other backend, and facilitate the use of GLFW with lettered-shortcuts API.
+//  2021-08-17: *BREAKING CHANGE*: Now using glfwSetWindowFocusCallback() to calling io.AddFocusEvent(). If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() and forward it to the backend via ImGui_ImplGlfw_WindowFocusCallback().
+//  2021-07-29: *BREAKING CHANGE*: Now using glfwSetCursorEnterCallback(). MousePos is correctly reported when the host platform window is hovered but not focused. If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() callback and forward it to the backend via ImGui_ImplGlfw_CursorEnterCallback().
+//  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+//  2020-01-17: Inputs: Disable error callback while assigning mouse cursors because some X11 setup don't have them and it generates errors.
+//  2019-12-05: Inputs: Added support for new mouse cursors added in GLFW 3.4+ (resizing cursors, not allowed cursor).
+//  2019-10-18: Misc: Previously installed user callbacks are now restored on shutdown.
+//  2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
+//  2019-05-11: Inputs: Don't filter value from character callback before calling AddInputCharacter().
+//  2019-03-12: Misc: Preserve DisplayFramebufferScale when main window is minimized.
+//  2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
+//  2018-11-07: Inputs: When installing our GLFW callbacks, we save user's previously installed ones - if any - and chain call them.
+//  2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls.
+//  2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
+//  2018-06-08: Misc: Extracted imgui_impl_glfw.cpp/.h away from the old combined GLFW+OpenGL/Vulkan examples.
+//  2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
+//  2018-02-20: Inputs: Added support for mouse cursors (ImGui::GetMouseCursor() value, passed to glfwSetCursor()).
+//  2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
+//  2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
+//  2018-01-25: Inputs: Added gamepad support if ImGuiConfigFlags_NavEnableGamepad is set.
+//  2018-01-25: Inputs: Honoring the io.WantSetMousePos by repositioning the mouse (when using navigation and ImGuiConfigFlags_NavMoveMouse is set).
+//  2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
+//  2018-01-18: Inputs: Added mapping for ImGuiKey_Insert.
+//  2017-08-25: Inputs: MousePos set to -FLT_MAX,-FLT_MAX when mouse is unavailable/missing (instead of -1,-1).
+//  2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_glfw.h"
+
+// Clang warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast
+#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wexit-time-destructors"  // warning: declaration requires an exit-time destructor     // exit-time destruction order is undefined. if MemFree() leads to users code that has been disabled before exit it might cause problems. ImGui coding style welcomes static/globals.
+#pragma clang diagnostic ignored "-Wglobal-constructors"    // warning: declaration requires a global destructor         // similar to above, not sure what the exact difference is.
+#endif
+
+#if defined(__has_include)
+#if !__has_include(<X11/Xlib.h>) || !__has_include(<X11/extensions/Xrandr.h>)
+#define IMGUI_IMPL_GLFW_DISABLE_X11
+#endif
+#if !__has_include(<wayland-client.h>)
+#define IMGUI_IMPL_GLFW_DISABLE_WAYLAND
+#endif
+#endif
+
+// GLFW
+#if !defined(IMGUI_IMPL_GLFW_DISABLE_X11) && (defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__))
+#define GLFW_HAS_X11        1
+#else
+#define GLFW_HAS_X11        0
+#endif
+#if !defined(IMGUI_IMPL_GLFW_DISABLE_WAYLAND) && (defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__DragonFly__))
+#define GLFW_HAS_WAYLAND    1
+#else
+#define GLFW_HAS_WAYLAND    0
+#endif
+#include <GLFW/glfw3.h>
+#ifdef _WIN32
+#undef APIENTRY
+#ifndef GLFW_EXPOSE_NATIVE_WIN32    // for glfwGetWin32Window()
+#define GLFW_EXPOSE_NATIVE_WIN32
+#endif
+#include <GLFW/glfw3native.h>
+#elif defined(__APPLE__)
+#ifndef GLFW_EXPOSE_NATIVE_COCOA    // for glfwGetCocoaWindow()
+#define GLFW_EXPOSE_NATIVE_COCOA
+#endif
+#include <GLFW/glfw3native.h>
+#elif GLFW_HAS_X11
+#ifndef GLFW_EXPOSE_NATIVE_X11      // for glfwGetX11Display(), glfwGetX11Window() on Freedesktop (Linux, BSD, etc.)
+#define GLFW_EXPOSE_NATIVE_X11
+#endif
+#include <GLFW/glfw3native.h>
+#endif
+#undef Status                   // X11 headers are leaking this.
+#ifndef _WIN32
+#include <unistd.h>             // for usleep()
+#endif
+#include <stdio.h>              // for snprintf()
+
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#include <emscripten/html5.h>
+#ifdef EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3
+#include <GLFW/emscripten_glfw3.h>
+#else
+#define EMSCRIPTEN_USE_EMBEDDED_GLFW3
+#endif
+#endif
+
+// We gather version tests as define in order to easily see which features are version-dependent.
+#define GLFW_VERSION_COMBINED           (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 + GLFW_VERSION_REVISION)
+#define GLFW_HAS_CREATECURSOR           (GLFW_VERSION_COMBINED >= 3100) // 3.1+ glfwCreateCursor()
+#define GLFW_HAS_PER_MONITOR_DPI        (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetMonitorContentScale
+#ifdef GLFW_RESIZE_NESW_CURSOR          // Let's be nice to people who pulled GLFW between 2019-04-16 (3.4 define) and 2019-11-29 (cursors defines) // FIXME: Remove when GLFW 3.4 is released?
+#define GLFW_HAS_NEW_CURSORS            (GLFW_VERSION_COMBINED >= 3400) // 3.4+ GLFW_RESIZE_ALL_CURSOR, GLFW_RESIZE_NESW_CURSOR, GLFW_RESIZE_NWSE_CURSOR, GLFW_NOT_ALLOWED_CURSOR
+#else
+#define GLFW_HAS_NEW_CURSORS            (0)
+#endif
+#define GLFW_HAS_GAMEPAD_API            (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetGamepadState() new api
+#define GLFW_HAS_GETKEYNAME             (GLFW_VERSION_COMBINED >= 3200) // 3.2+ glfwGetKeyName()
+#define GLFW_HAS_GETERROR               (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetError()
+#define GLFW_HAS_GETPLATFORM            (GLFW_VERSION_COMBINED >= 3400) // 3.4+ glfwGetPlatform()
+
+// Map GLFWWindow* to ImGuiContext*.
+// - Would be simpler if we could use glfwSetWindowUserPointer()/glfwGetWindowUserPointer(), but this is a single and shared resource.
+// - Would be simpler if we could use e.g. std::map<> as well. But we don't.
+// - This is not particularly optimized as we expect size to be small and queries to be rare.
+struct ImGui_ImplGlfw_WindowToContext { GLFWwindow* Window; ImGuiContext* Context; };
+static ImVector<ImGui_ImplGlfw_WindowToContext> g_ContextMap;
+static void ImGui_ImplGlfw_ContextMap_Add(GLFWwindow* window, ImGuiContext* ctx) { g_ContextMap.push_back(ImGui_ImplGlfw_WindowToContext{ window, ctx }); }
+static void ImGui_ImplGlfw_ContextMap_Remove(GLFWwindow* window)                 { for (ImGui_ImplGlfw_WindowToContext& entry : g_ContextMap) if (entry.Window == window) { g_ContextMap.erase_unsorted(&entry); if (g_ContextMap.empty()) g_ContextMap.clear(); return; } }
+static ImGuiContext* ImGui_ImplGlfw_ContextMap_Get(GLFWwindow* window)           { for (ImGui_ImplGlfw_WindowToContext& entry : g_ContextMap) if (entry.Window == window) return entry.Context; return nullptr; }
+
+enum GlfwClientApi
+{
+    GlfwClientApi_OpenGL,
+    GlfwClientApi_Vulkan,
+    GlfwClientApi_Unknown,  // Anything else fits here.
+};
+
+// GLFW data
+struct ImGui_ImplGlfw_Data
+{
+    ImGuiContext*           Context;
+    GLFWwindow*             Window;
+    GlfwClientApi           ClientApi;
+    double                  Time;
+    GLFWwindow*             MouseWindow;
+#if GLFW_HAS_CREATECURSOR
+    GLFWcursor*             MouseCursors[ImGuiMouseCursor_COUNT];
+    GLFWcursor*             LastMouseCursor;
+#endif
+    ImVec2                  LastValidMousePos;
+    bool                    IsWayland;
+    bool                    InstalledCallbacks;
+    bool                    CallbacksChainForAllWindows;
+    char                    BackendPlatformName[32];
+#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
+    const char*             CanvasSelector;
+#endif
+
+    // Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
+    GLFWwindowfocusfun      PrevUserCallbackWindowFocus;
+    GLFWcursorposfun        PrevUserCallbackCursorPos;
+    GLFWcursorenterfun      PrevUserCallbackCursorEnter;
+    GLFWmousebuttonfun      PrevUserCallbackMousebutton;
+    GLFWscrollfun           PrevUserCallbackScroll;
+    GLFWkeyfun              PrevUserCallbackKey;
+    GLFWcharfun             PrevUserCallbackChar;
+    GLFWmonitorfun          PrevUserCallbackMonitor;
+#ifdef _WIN32
+    WNDPROC                 PrevWndProc;
+#endif
+
+    ImGui_ImplGlfw_Data()   { memset((void*)this, 0, sizeof(*this)); }
+};
+
+// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
+// - Because glfwPollEvents() process all windows and some events may be called outside of it, you will need to register your own callbacks
+//   (passing install_callbacks=false in ImGui_ImplGlfw_InitXXX functions), set the current dear imgui context and then call our callbacks.
+// - Otherwise we may need to store a GLFWWindow* -> ImGuiContext* map and handle this in the backend, adding a little bit of extra complexity to it.
+// FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context.
+namespace ImGui { extern ImGuiIO& GetIO(ImGuiContext*); }
+static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData()
+{
+    // Get data for current context
+    return ImGui::GetCurrentContext() ? (ImGui_ImplGlfw_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr;
+}
+static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData(GLFWwindow* window)
+{
+    // Get data for a given GLFW window, regardless of current context (since GLFW events are sent together)
+    ImGuiContext* ctx = ImGui_ImplGlfw_ContextMap_Get(window);
+    return (ImGui_ImplGlfw_Data*)ImGui::GetIO(ctx).BackendPlatformUserData;
+}
+
+// Functions
+static bool ImGui_ImplGlfw_IsWayland()
+{
+#if !GLFW_HAS_WAYLAND
+    return false;
+#elif GLFW_HAS_GETPLATFORM
+    return glfwGetPlatform() == GLFW_PLATFORM_WAYLAND;
+#else
+    const char* version = glfwGetVersionString();
+    if (strstr(version, "Wayland") == nullptr) // e.g. Ubuntu 22.04 ships with GLFW 3.3.6 compiled without Wayland
+        return false;
+#ifdef GLFW_EXPOSE_NATIVE_X11
+    if (glfwGetX11Display() != nullptr)
+        return false;
+#endif
+    return true;
+#endif
+}
+
+// Not static to allow third-party code to use that if they want to (but undocumented)
+ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int keycode, int scancode);
+ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int keycode, int scancode)
+{
+    IM_UNUSED(scancode);
+    switch (keycode)
+    {
+        case GLFW_KEY_TAB: return ImGuiKey_Tab;
+        case GLFW_KEY_LEFT: return ImGuiKey_LeftArrow;
+        case GLFW_KEY_RIGHT: return ImGuiKey_RightArrow;
+        case GLFW_KEY_UP: return ImGuiKey_UpArrow;
+        case GLFW_KEY_DOWN: return ImGuiKey_DownArrow;
+        case GLFW_KEY_PAGE_UP: return ImGuiKey_PageUp;
+        case GLFW_KEY_PAGE_DOWN: return ImGuiKey_PageDown;
+        case GLFW_KEY_HOME: return ImGuiKey_Home;
+        case GLFW_KEY_END: return ImGuiKey_End;
+        case GLFW_KEY_INSERT: return ImGuiKey_Insert;
+        case GLFW_KEY_DELETE: return ImGuiKey_Delete;
+        case GLFW_KEY_BACKSPACE: return ImGuiKey_Backspace;
+        case GLFW_KEY_SPACE: return ImGuiKey_Space;
+        case GLFW_KEY_ENTER: return ImGuiKey_Enter;
+        case GLFW_KEY_ESCAPE: return ImGuiKey_Escape;
+        case GLFW_KEY_APOSTROPHE: return ImGuiKey_Apostrophe;
+        case GLFW_KEY_COMMA: return ImGuiKey_Comma;
+        case GLFW_KEY_MINUS: return ImGuiKey_Minus;
+        case GLFW_KEY_PERIOD: return ImGuiKey_Period;
+        case GLFW_KEY_SLASH: return ImGuiKey_Slash;
+        case GLFW_KEY_SEMICOLON: return ImGuiKey_Semicolon;
+        case GLFW_KEY_EQUAL: return ImGuiKey_Equal;
+        case GLFW_KEY_LEFT_BRACKET: return ImGuiKey_LeftBracket;
+        case GLFW_KEY_BACKSLASH: return ImGuiKey_Backslash;
+        case GLFW_KEY_WORLD_1: return ImGuiKey_Oem102;
+        case GLFW_KEY_WORLD_2: return ImGuiKey_Oem102;
+        case GLFW_KEY_RIGHT_BRACKET: return ImGuiKey_RightBracket;
+        case GLFW_KEY_GRAVE_ACCENT: return ImGuiKey_GraveAccent;
+        case GLFW_KEY_CAPS_LOCK: return ImGuiKey_CapsLock;
+        case GLFW_KEY_SCROLL_LOCK: return ImGuiKey_ScrollLock;
+        case GLFW_KEY_NUM_LOCK: return ImGuiKey_NumLock;
+        case GLFW_KEY_PRINT_SCREEN: return ImGuiKey_PrintScreen;
+        case GLFW_KEY_PAUSE: return ImGuiKey_Pause;
+        case GLFW_KEY_KP_0: return ImGuiKey_Keypad0;
+        case GLFW_KEY_KP_1: return ImGuiKey_Keypad1;
+        case GLFW_KEY_KP_2: return ImGuiKey_Keypad2;
+        case GLFW_KEY_KP_3: return ImGuiKey_Keypad3;
+        case GLFW_KEY_KP_4: return ImGuiKey_Keypad4;
+        case GLFW_KEY_KP_5: return ImGuiKey_Keypad5;
+        case GLFW_KEY_KP_6: return ImGuiKey_Keypad6;
+        case GLFW_KEY_KP_7: return ImGuiKey_Keypad7;
+        case GLFW_KEY_KP_8: return ImGuiKey_Keypad8;
+        case GLFW_KEY_KP_9: return ImGuiKey_Keypad9;
+        case GLFW_KEY_KP_DECIMAL: return ImGuiKey_KeypadDecimal;
+        case GLFW_KEY_KP_DIVIDE: return ImGuiKey_KeypadDivide;
+        case GLFW_KEY_KP_MULTIPLY: return ImGuiKey_KeypadMultiply;
+        case GLFW_KEY_KP_SUBTRACT: return ImGuiKey_KeypadSubtract;
+        case GLFW_KEY_KP_ADD: return ImGuiKey_KeypadAdd;
+        case GLFW_KEY_KP_ENTER: return ImGuiKey_KeypadEnter;
+        case GLFW_KEY_KP_EQUAL: return ImGuiKey_KeypadEqual;
+        case GLFW_KEY_LEFT_SHIFT: return ImGuiKey_LeftShift;
+        case GLFW_KEY_LEFT_CONTROL: return ImGuiKey_LeftCtrl;
+        case GLFW_KEY_LEFT_ALT: return ImGuiKey_LeftAlt;
+        case GLFW_KEY_LEFT_SUPER: return ImGuiKey_LeftSuper;
+        case GLFW_KEY_RIGHT_SHIFT: return ImGuiKey_RightShift;
+        case GLFW_KEY_RIGHT_CONTROL: return ImGuiKey_RightCtrl;
+        case GLFW_KEY_RIGHT_ALT: return ImGuiKey_RightAlt;
+        case GLFW_KEY_RIGHT_SUPER: return ImGuiKey_RightSuper;
+        case GLFW_KEY_MENU: return ImGuiKey_Menu;
+        case GLFW_KEY_0: return ImGuiKey_0;
+        case GLFW_KEY_1: return ImGuiKey_1;
+        case GLFW_KEY_2: return ImGuiKey_2;
+        case GLFW_KEY_3: return ImGuiKey_3;
+        case GLFW_KEY_4: return ImGuiKey_4;
+        case GLFW_KEY_5: return ImGuiKey_5;
+        case GLFW_KEY_6: return ImGuiKey_6;
+        case GLFW_KEY_7: return ImGuiKey_7;
+        case GLFW_KEY_8: return ImGuiKey_8;
+        case GLFW_KEY_9: return ImGuiKey_9;
+        case GLFW_KEY_A: return ImGuiKey_A;
+        case GLFW_KEY_B: return ImGuiKey_B;
+        case GLFW_KEY_C: return ImGuiKey_C;
+        case GLFW_KEY_D: return ImGuiKey_D;
+        case GLFW_KEY_E: return ImGuiKey_E;
+        case GLFW_KEY_F: return ImGuiKey_F;
+        case GLFW_KEY_G: return ImGuiKey_G;
+        case GLFW_KEY_H: return ImGuiKey_H;
+        case GLFW_KEY_I: return ImGuiKey_I;
+        case GLFW_KEY_J: return ImGuiKey_J;
+        case GLFW_KEY_K: return ImGuiKey_K;
+        case GLFW_KEY_L: return ImGuiKey_L;
+        case GLFW_KEY_M: return ImGuiKey_M;
+        case GLFW_KEY_N: return ImGuiKey_N;
+        case GLFW_KEY_O: return ImGuiKey_O;
+        case GLFW_KEY_P: return ImGuiKey_P;
+        case GLFW_KEY_Q: return ImGuiKey_Q;
+        case GLFW_KEY_R: return ImGuiKey_R;
+        case GLFW_KEY_S: return ImGuiKey_S;
+        case GLFW_KEY_T: return ImGuiKey_T;
+        case GLFW_KEY_U: return ImGuiKey_U;
+        case GLFW_KEY_V: return ImGuiKey_V;
+        case GLFW_KEY_W: return ImGuiKey_W;
+        case GLFW_KEY_X: return ImGuiKey_X;
+        case GLFW_KEY_Y: return ImGuiKey_Y;
+        case GLFW_KEY_Z: return ImGuiKey_Z;
+        case GLFW_KEY_F1: return ImGuiKey_F1;
+        case GLFW_KEY_F2: return ImGuiKey_F2;
+        case GLFW_KEY_F3: return ImGuiKey_F3;
+        case GLFW_KEY_F4: return ImGuiKey_F4;
+        case GLFW_KEY_F5: return ImGuiKey_F5;
+        case GLFW_KEY_F6: return ImGuiKey_F6;
+        case GLFW_KEY_F7: return ImGuiKey_F7;
+        case GLFW_KEY_F8: return ImGuiKey_F8;
+        case GLFW_KEY_F9: return ImGuiKey_F9;
+        case GLFW_KEY_F10: return ImGuiKey_F10;
+        case GLFW_KEY_F11: return ImGuiKey_F11;
+        case GLFW_KEY_F12: return ImGuiKey_F12;
+        case GLFW_KEY_F13: return ImGuiKey_F13;
+        case GLFW_KEY_F14: return ImGuiKey_F14;
+        case GLFW_KEY_F15: return ImGuiKey_F15;
+        case GLFW_KEY_F16: return ImGuiKey_F16;
+        case GLFW_KEY_F17: return ImGuiKey_F17;
+        case GLFW_KEY_F18: return ImGuiKey_F18;
+        case GLFW_KEY_F19: return ImGuiKey_F19;
+        case GLFW_KEY_F20: return ImGuiKey_F20;
+        case GLFW_KEY_F21: return ImGuiKey_F21;
+        case GLFW_KEY_F22: return ImGuiKey_F22;
+        case GLFW_KEY_F23: return ImGuiKey_F23;
+        case GLFW_KEY_F24: return ImGuiKey_F24;
+        default: return ImGuiKey_None;
+    }
+}
+
+// X11 does not include current pressed/released modifier key in 'mods' flags submitted by GLFW
+// See https://github.com/ocornut/imgui/issues/6034 and https://github.com/glfw/glfw/issues/1630
+static void ImGui_ImplGlfw_UpdateKeyModifiers(ImGuiIO& io, GLFWwindow* window)
+{
+    io.AddKeyEvent(ImGuiMod_Ctrl,  (glfwGetKey(window, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS));
+    io.AddKeyEvent(ImGuiMod_Shift, (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT)   == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_SHIFT)   == GLFW_PRESS));
+    io.AddKeyEvent(ImGuiMod_Alt,   (glfwGetKey(window, GLFW_KEY_LEFT_ALT)     == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_ALT)     == GLFW_PRESS));
+    io.AddKeyEvent(ImGuiMod_Super, (glfwGetKey(window, GLFW_KEY_LEFT_SUPER)   == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_SUPER)   == GLFW_PRESS));
+}
+
+static bool ImGui_ImplGlfw_ShouldChainCallback(ImGui_ImplGlfw_Data* bd, GLFWwindow* window)
+{
+    return bd->CallbacksChainForAllWindows ? true : (window == bd->Window);
+}
+
+void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (bd->PrevUserCallbackMousebutton != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+        bd->PrevUserCallbackMousebutton(window, button, action, mods);
+
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGui_ImplGlfw_UpdateKeyModifiers(io, window);
+    if (button >= 0 && button < ImGuiMouseButton_COUNT)
+        io.AddMouseButtonEvent(button, action == GLFW_PRESS);
+}
+
+void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (bd->PrevUserCallbackScroll != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+        bd->PrevUserCallbackScroll(window, xoffset, yoffset);
+
+#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
+    // Ignore GLFW events: will be processed in ImGui_ImplEmscripten_WheelCallback().
+    return;
+#endif
+
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    io.AddMouseWheelEvent((float)xoffset, (float)yoffset);
+}
+
+// FIXME: should this be baked into ImGui_ImplGlfw_KeyToImGuiKey()? then what about the values passed to io.SetKeyEventNativeData()?
+static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
+{
+#if GLFW_HAS_GETKEYNAME && !defined(EMSCRIPTEN_USE_EMBEDDED_GLFW3)
+    // GLFW 3.1+ attempts to "untranslate" keys, which goes the opposite of what every other framework does, making using lettered shortcuts difficult.
+    // (It had reasons to do so: namely GLFW is/was more likely to be used for WASD-type game controls rather than lettered shortcuts, but IHMO the 3.1 change could have been done differently)
+    // See https://github.com/glfw/glfw/issues/1502 for details.
+    // Adding a workaround to undo this (so our keys are translated->untranslated->translated, likely a lossy process).
+    // This won't cover edge cases but this is at least going to cover common cases.
+    if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_EQUAL)
+        return key;
+    GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr);
+    const char* key_name = glfwGetKeyName(key, scancode);
+    glfwSetErrorCallback(prev_error_callback);
+#if GLFW_HAS_GETERROR && !defined(EMSCRIPTEN_USE_EMBEDDED_GLFW3) // Eat errors (see #5908)
+    (void)glfwGetError(nullptr);
+#endif
+    if (key_name && key_name[0] != 0 && key_name[1] == 0)
+    {
+        const char char_names[] = "`-=[]\\,;\'./";
+        const int char_keys[] = { GLFW_KEY_GRAVE_ACCENT, GLFW_KEY_MINUS, GLFW_KEY_EQUAL, GLFW_KEY_LEFT_BRACKET, GLFW_KEY_RIGHT_BRACKET, GLFW_KEY_BACKSLASH, GLFW_KEY_COMMA, GLFW_KEY_SEMICOLON, GLFW_KEY_APOSTROPHE, GLFW_KEY_PERIOD, GLFW_KEY_SLASH, 0 };
+        IM_ASSERT(IM_COUNTOF(char_names) == IM_COUNTOF(char_keys));
+        if (key_name[0] >= '0' && key_name[0] <= '9')               { key = GLFW_KEY_0 + (key_name[0] - '0'); }
+        else if (key_name[0] >= 'A' && key_name[0] <= 'Z')          { key = GLFW_KEY_A + (key_name[0] - 'A'); }
+        else if (key_name[0] >= 'a' && key_name[0] <= 'z')          { key = GLFW_KEY_A + (key_name[0] - 'a'); }
+        else if (const char* p = strchr(char_names, key_name[0]))   { key = char_keys[p - char_names]; }
+    }
+    // if (action == GLFW_PRESS) printf("key %d scancode %d name '%s'\n", key, scancode, key_name);
+#else
+    IM_UNUSED(scancode);
+#endif
+    return key;
+}
+
+void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int keycode, int scancode, int action, int mods)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (bd->PrevUserCallbackKey != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+        bd->PrevUserCallbackKey(window, keycode, scancode, action, mods);
+
+    if (action != GLFW_PRESS && action != GLFW_RELEASE)
+        return;
+
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    ImGui_ImplGlfw_UpdateKeyModifiers(io, window);
+
+    keycode = ImGui_ImplGlfw_TranslateUntranslatedKey(keycode, scancode);
+
+    ImGuiKey imgui_key = ImGui_ImplGlfw_KeyToImGuiKey(keycode, scancode);
+    io.AddKeyEvent(imgui_key, (action == GLFW_PRESS));
+    io.SetKeyEventNativeData(imgui_key, keycode, scancode); // To support legacy indexing (<1.87 user code)
+}
+
+void ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (bd->PrevUserCallbackWindowFocus != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+        bd->PrevUserCallbackWindowFocus(window, focused);
+
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    io.AddFocusEvent(focused != 0);
+}
+
+void ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (bd->PrevUserCallbackCursorPos != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+        bd->PrevUserCallbackCursorPos(window, x, y);
+
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    io.AddMousePosEvent((float)x, (float)y);
+    bd->LastValidMousePos = ImVec2((float)x, (float)y);
+}
+
+// Workaround: X11 seems to send spurious Leave/Enter events which would make us lose our position,
+// so we back it up and restore on Leave/Enter (see https://github.com/ocornut/imgui/issues/4984)
+void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (bd->PrevUserCallbackCursorEnter != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+        bd->PrevUserCallbackCursorEnter(window, entered);
+
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    if (entered)
+    {
+        bd->MouseWindow = window;
+        io.AddMousePosEvent(bd->LastValidMousePos.x, bd->LastValidMousePos.y);
+    }
+    else if (!entered && bd->MouseWindow == window)
+    {
+        bd->LastValidMousePos = io.MousePos;
+        bd->MouseWindow = nullptr;
+        io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
+    }
+}
+
+void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (bd->PrevUserCallbackChar != nullptr && ImGui_ImplGlfw_ShouldChainCallback(bd, window))
+        bd->PrevUserCallbackChar(window, c);
+
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    io.AddInputCharacter(c);
+}
+
+void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor*, int)
+{
+    // Unused in 'master' branch but 'docking' branch will use this, so we declare it ahead of it so if you have to install callbacks you can install this one too.
+}
+
+#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
+static EM_BOOL ImGui_ImplEmscripten_WheelCallback(int, const EmscriptenWheelEvent* ev, void* user_data)
+{
+    // Mimic Emscripten_HandleWheel() in SDL.
+    // Corresponding equivalent in GLFW JS emulation layer has incorrect quantizing preventing small values. See #6096
+    ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)user_data;
+    float multiplier = 0.0f;
+    if (ev->deltaMode == DOM_DELTA_PIXEL)       { multiplier = 1.0f / 100.0f; } // 100 pixels make up a step.
+    else if (ev->deltaMode == DOM_DELTA_LINE)   { multiplier = 1.0f / 3.0f; }   // 3 lines make up a step.
+    else if (ev->deltaMode == DOM_DELTA_PAGE)   { multiplier = 80.0f; }         // A page makes up 80 steps.
+    float wheel_x = ev->deltaX * -multiplier;
+    float wheel_y = ev->deltaY * -multiplier;
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+    io.AddMouseWheelEvent(wheel_x, wheel_y);
+    //IMGUI_DEBUG_LOG("[Emsc] mode %d dx: %.2f, dy: %.2f, dz: %.2f --> feed %.2f %.2f\n", (int)ev->deltaMode, ev->deltaX, ev->deltaY, ev->deltaZ, wheel_x, wheel_y);
+    return EM_TRUE;
+}
+#endif
+
+#ifdef _WIN32
+// GLFW doesn't allow to distinguish Mouse vs TouchScreen vs Pen.
+// Add support for Win32 (based on imgui_impl_win32), because we rely on _TouchScreen info to trickle inputs differently.
+static ImGuiMouseSource GetMouseSourceFromMessageExtraInfo()
+{
+    LPARAM extra_info = ::GetMessageExtraInfo();
+    if ((extra_info & 0xFFFFFF80) == 0xFF515700)
+        return ImGuiMouseSource_Pen;
+    if ((extra_info & 0xFFFFFF80) == 0xFF515780)
+        return ImGuiMouseSource_TouchScreen;
+    return ImGuiMouseSource_Mouse;
+}
+static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+    ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)::GetPropA(hWnd, "IMGUI_BACKEND_DATA");
+    ImGuiIO& io = ImGui::GetIO(bd->Context);
+
+    switch (msg)
+    {
+    case WM_MOUSEMOVE: case WM_NCMOUSEMOVE:
+    case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK: case WM_LBUTTONUP:
+    case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK: case WM_RBUTTONUP:
+    case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK: case WM_MBUTTONUP:
+    case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK: case WM_XBUTTONUP:
+        io.AddMouseSourceEvent(GetMouseSourceFromMessageExtraInfo());
+        break;
+    default: break;
+    }
+    return ::CallWindowProcW(bd->PrevWndProc, hWnd, msg, wParam, lParam);
+}
+#endif
+
+void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    IM_ASSERT(bd->InstalledCallbacks == false && "Callbacks already installed!");
+    IM_ASSERT(bd->Window == window);
+
+    bd->PrevUserCallbackWindowFocus = glfwSetWindowFocusCallback(window, ImGui_ImplGlfw_WindowFocusCallback);
+    bd->PrevUserCallbackCursorEnter = glfwSetCursorEnterCallback(window, ImGui_ImplGlfw_CursorEnterCallback);
+    bd->PrevUserCallbackCursorPos = glfwSetCursorPosCallback(window, ImGui_ImplGlfw_CursorPosCallback);
+    bd->PrevUserCallbackMousebutton = glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
+    bd->PrevUserCallbackScroll = glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
+    bd->PrevUserCallbackKey = glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
+    bd->PrevUserCallbackChar = glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
+    bd->PrevUserCallbackMonitor = glfwSetMonitorCallback(ImGui_ImplGlfw_MonitorCallback);
+    bd->InstalledCallbacks = true;
+}
+
+void ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    IM_ASSERT(bd->InstalledCallbacks == true && "Callbacks not installed!");
+    IM_ASSERT(bd->Window == window);
+
+    glfwSetWindowFocusCallback(window, bd->PrevUserCallbackWindowFocus);
+    glfwSetCursorEnterCallback(window, bd->PrevUserCallbackCursorEnter);
+    glfwSetCursorPosCallback(window, bd->PrevUserCallbackCursorPos);
+    glfwSetMouseButtonCallback(window, bd->PrevUserCallbackMousebutton);
+    glfwSetScrollCallback(window, bd->PrevUserCallbackScroll);
+    glfwSetKeyCallback(window, bd->PrevUserCallbackKey);
+    glfwSetCharCallback(window, bd->PrevUserCallbackChar);
+    glfwSetMonitorCallback(bd->PrevUserCallbackMonitor);
+    bd->InstalledCallbacks = false;
+    bd->PrevUserCallbackWindowFocus = nullptr;
+    bd->PrevUserCallbackCursorEnter = nullptr;
+    bd->PrevUserCallbackCursorPos = nullptr;
+    bd->PrevUserCallbackMousebutton = nullptr;
+    bd->PrevUserCallbackScroll = nullptr;
+    bd->PrevUserCallbackKey = nullptr;
+    bd->PrevUserCallbackChar = nullptr;
+    bd->PrevUserCallbackMonitor = nullptr;
+}
+
+// Set to 'true' to enable chaining installed callbacks for all windows (including secondary viewports created by backends or by user).
+// This is 'false' by default meaning we only chain callbacks for the main viewport.
+// We cannot set this to 'true' by default because user callbacks code may be not testing the 'window' parameter of their callback.
+// If you set this to 'true' your user callback code will need to make sure you are testing the 'window' parameter.
+void ImGui_ImplGlfw_SetCallbacksChainForAllWindows(bool chain_for_all_windows)
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    bd->CallbacksChainForAllWindows = chain_for_all_windows;
+}
+
+#ifdef __EMSCRIPTEN__
+#if EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3 >= 34020240817
+void ImGui_ImplGlfw_EmscriptenOpenURL(const char* url) { if (url) emscripten::glfw3::OpenURL(url); }
+#else
+EM_JS(void, ImGui_ImplGlfw_EmscriptenOpenURL, (const char* url), { url = url ? UTF8ToString(url) : null; if (url) window.open(url, '_blank'); });
+#endif
+#endif
+
+static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
+    //printf("GLFW_VERSION: %d.%d.%d (%d)", GLFW_VERSION_MAJOR, GLFW_VERSION_MINOR, GLFW_VERSION_REVISION, GLFW_VERSION_COMBINED);
+
+    // Setup backend capabilities flags
+    ImGui_ImplGlfw_Data* bd = IM_NEW(ImGui_ImplGlfw_Data)();
+    snprintf(bd->BackendPlatformName, sizeof(bd->BackendPlatformName), "imgui_impl_glfw (%d)", GLFW_VERSION_COMBINED);
+    io.BackendPlatformUserData = (void*)bd;
+    io.BackendPlatformName = bd->BackendPlatformName;
+#if GLFW_HAS_CREATECURSOR
+    io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;         // We can honor GetMouseCursor() values (optional)
+#endif
+    io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;          // We can honor io.WantSetMousePos requests (optional, rarely used)
+
+    bd->Context = ImGui::GetCurrentContext();
+    bd->Window = window;
+    bd->Time = 0.0;
+    bd->IsWayland = ImGui_ImplGlfw_IsWayland();
+    ImGui_ImplGlfw_ContextMap_Add(window, bd->Context);
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+#if GLFW_VERSION_COMBINED < 3300
+    platform_io.Platform_SetClipboardTextFn = [](ImGuiContext*, const char* text) { glfwSetClipboardString(ImGui_ImplGlfw_GetBackendData()->Window, text); };
+    platform_io.Platform_GetClipboardTextFn = [](ImGuiContext*) { return glfwGetClipboardString(ImGui_ImplGlfw_GetBackendData()->Window); };
+#else
+    platform_io.Platform_SetClipboardTextFn = [](ImGuiContext*, const char* text) { glfwSetClipboardString(nullptr, text); };
+    platform_io.Platform_GetClipboardTextFn = [](ImGuiContext*) { return glfwGetClipboardString(nullptr); };
+#endif
+
+#ifdef __EMSCRIPTEN__
+    platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { ImGui_ImplGlfw_EmscriptenOpenURL(url); return true; };
+#endif
+
+    // Create mouse cursors
+    // (By design, on X11 cursors are user configurable and some cursors may be missing. When a cursor doesn't exist,
+    // GLFW will emit an error which will often be printed by the app, so we temporarily disable error reporting.
+    // Missing cursors will return nullptr and our _UpdateMouseCursor() function will use the Arrow cursor instead.)
+#if GLFW_HAS_CREATECURSOR
+    GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr);
+    bd->MouseCursors[ImGuiMouseCursor_Arrow] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_TextInput] = glfwCreateStandardCursor(GLFW_IBEAM_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = glfwCreateStandardCursor(GLFW_VRESIZE_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = glfwCreateStandardCursor(GLFW_HRESIZE_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_Hand] = glfwCreateStandardCursor(GLFW_HAND_CURSOR);
+#if GLFW_HAS_NEW_CURSORS
+    bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_RESIZE_ALL_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_RESIZE_NESW_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_RESIZE_NWSE_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_NOT_ALLOWED_CURSOR);
+#else
+    bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
+    bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
+#endif
+    glfwSetErrorCallback(prev_error_callback);
+#endif
+#if GLFW_HAS_GETERROR && !defined(__EMSCRIPTEN__) // Eat errors (see #5908)
+    (void)glfwGetError(nullptr);
+#endif
+
+    // Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
+    if (install_callbacks)
+        ImGui_ImplGlfw_InstallCallbacks(window);
+
+    // Set platform dependent data in viewport
+    ImGuiViewport* main_viewport = ImGui::GetMainViewport();
+    main_viewport->PlatformHandle = (void*)bd->Window;
+#ifdef _WIN32
+    main_viewport->PlatformHandleRaw = glfwGetWin32Window(bd->Window);
+#elif defined(__APPLE__)
+    main_viewport->PlatformHandleRaw = (void*)glfwGetCocoaWindow(bd->Window);
+#else
+    IM_UNUSED(main_viewport);
+#endif
+
+    // Windows: register a WndProc hook so we can intercept some messages.
+#ifdef _WIN32
+    HWND hwnd = (HWND)main_viewport->PlatformHandleRaw;
+    ::SetPropA(hwnd, "IMGUI_BACKEND_DATA", bd);
+    bd->PrevWndProc = (WNDPROC)::GetWindowLongPtrW(hwnd, GWLP_WNDPROC);
+    IM_ASSERT(bd->PrevWndProc != nullptr);
+    ::SetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)ImGui_ImplGlfw_WndProc);
+#endif
+
+    // Emscripten: the same application can run on various platforms, so we detect the Apple platform at runtime
+    // to override io.ConfigMacOSXBehaviors from its default (which is always false in Emscripten).
+#ifdef __EMSCRIPTEN__
+#if EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3 >= 34020240817
+    if (emscripten::glfw3::IsRuntimePlatformApple())
+    {
+        io.ConfigMacOSXBehaviors = true;
+
+        // Due to how the browser (poorly) handles the Meta Key, this line essentially disables repeats when used.
+        // This means that Meta + V only registers a single key-press, even if the keys are held.
+        // This is a compromise for dealing with this issue in ImGui since ImGui implements key repeat itself.
+        // See https://github.com/pongasoft/emscripten-glfw/blob/v3.4.0.20240817/docs/Usage.md#the-problem-of-the-super-key
+        emscripten::glfw3::SetSuperPlusKeyTimeouts(10, 10);
+    }
+#endif
+#endif
+
+    bd->ClientApi = client_api;
+    return true;
+}
+
+bool ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks)
+{
+    return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_OpenGL);
+}
+
+bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks)
+{
+    return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Vulkan);
+}
+
+bool ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks)
+{
+    return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Unknown);
+}
+
+void ImGui_ImplGlfw_Shutdown()
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?");
+
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    if (bd->InstalledCallbacks)
+        ImGui_ImplGlfw_RestoreCallbacks(bd->Window);
+#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
+    if (bd->CanvasSelector)
+        emscripten_set_wheel_callback(bd->CanvasSelector, nullptr, false, nullptr);
+#endif
+#if GLFW_HAS_CREATECURSOR
+    for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
+        glfwDestroyCursor(bd->MouseCursors[cursor_n]);
+#endif
+    // Windows: restore our WndProc hook
+#ifdef _WIN32
+    ImGuiViewport* main_viewport = ImGui::GetMainViewport();
+    ::SetPropA((HWND)main_viewport->PlatformHandleRaw, "IMGUI_BACKEND_DATA", nullptr);
+    ::SetWindowLongPtrW((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)bd->PrevWndProc);
+    bd->PrevWndProc = nullptr;
+#endif
+
+    io.BackendPlatformName = nullptr;
+    io.BackendPlatformUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad);
+    platform_io.ClearPlatformHandlers();
+    ImGui_ImplGlfw_ContextMap_Remove(bd->Window);
+    IM_DELETE(bd);
+}
+
+static void ImGui_ImplGlfw_UpdateMouseData()
+{
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    ImGuiIO& io = ImGui::GetIO();
+
+    // (those braces are here to reduce diff with multi-viewports support in 'docking' branch)
+    {
+        GLFWwindow* window = bd->Window;
+#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
+        const bool is_window_focused = true;
+#else
+        const bool is_window_focused = glfwGetWindowAttrib(window, GLFW_FOCUSED) != 0;
+#endif
+        if (is_window_focused)
+        {
+            // (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when io.ConfigNavMoveSetMousePos is enabled by user)
+            if (io.WantSetMousePos)
+                glfwSetCursorPos(window, (double)io.MousePos.x, (double)io.MousePos.y);
+
+            // (Optional) Fallback to provide mouse position when focused (ImGui_ImplGlfw_CursorPosCallback already provides this when hovered or captured)
+            if (bd->MouseWindow == nullptr)
+            {
+                double mouse_x, mouse_y;
+                glfwGetCursorPos(window, &mouse_x, &mouse_y);
+                bd->LastValidMousePos = ImVec2((float)mouse_x, (float)mouse_y);
+                io.AddMousePosEvent((float)mouse_x, (float)mouse_y);
+            }
+        }
+    }
+}
+
+static void ImGui_ImplGlfw_UpdateMouseCursor()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) || glfwGetInputMode(bd->Window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
+        return;
+
+    ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
+    // (those braces are here to reduce diff with multi-viewports support in 'docking' branch)
+    {
+        GLFWwindow* window = bd->Window;
+        if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor)
+        {
+            if (bd->LastMouseCursor != nullptr)
+            {
+                // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
+                glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
+                bd->LastMouseCursor = nullptr;
+            }
+        }
+        else
+        {
+            // Show OS mouse cursor
+            // FIXME-PLATFORM: Unfocused windows seems to fail changing the mouse cursor with GLFW 3.2, but 3.3 works here.
+#if GLFW_HAS_CREATECURSOR
+            GLFWcursor* cursor = bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow];
+            if (bd->LastMouseCursor != cursor)
+            {
+                glfwSetCursor(window, cursor);
+                bd->LastMouseCursor = cursor;
+            }
+#endif
+            glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
+        }
+    }
+}
+
+// Update gamepad inputs
+static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v  > 1.0f ? 1.0f : v; }
+static void ImGui_ImplGlfw_UpdateGamepads()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs, but see #8075
+        return;
+
+    io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
+#if GLFW_HAS_GAMEPAD_API && !defined(EMSCRIPTEN_USE_EMBEDDED_GLFW3)
+    GLFWgamepadstate gamepad;
+    if (!glfwGetGamepadState(GLFW_JOYSTICK_1, &gamepad))
+        return;
+    #define MAP_BUTTON(KEY_NO, BUTTON_NO, _UNUSED)          do { io.AddKeyEvent(KEY_NO, gamepad.buttons[BUTTON_NO] != 0); } while (0)
+    #define MAP_ANALOG(KEY_NO, AXIS_NO, _UNUSED, V0, V1)    do { float v = gamepad.axes[AXIS_NO]; v = (v - V0) / (V1 - V0); io.AddKeyAnalogEvent(KEY_NO, v > 0.10f, Saturate(v)); } while (0)
+#else
+    int axes_count = 0, buttons_count = 0;
+    const float* axes = glfwGetJoystickAxes(GLFW_JOYSTICK_1, &axes_count);
+    const unsigned char* buttons = glfwGetJoystickButtons(GLFW_JOYSTICK_1, &buttons_count);
+    if (axes_count == 0 || buttons_count == 0)
+        return;
+    #define MAP_BUTTON(KEY_NO, _UNUSED, BUTTON_NO)          do { io.AddKeyEvent(KEY_NO, (buttons_count > BUTTON_NO && buttons[BUTTON_NO] == GLFW_PRESS)); } while (0)
+    #define MAP_ANALOG(KEY_NO, _UNUSED, AXIS_NO, V0, V1)    do { float v = (axes_count > AXIS_NO) ? axes[AXIS_NO] : V0; v = (v - V0) / (V1 - V0); io.AddKeyAnalogEvent(KEY_NO, v > 0.10f, Saturate(v)); } while (0)
+#endif
+    io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
+    MAP_BUTTON(ImGuiKey_GamepadStart,       GLFW_GAMEPAD_BUTTON_START,          7);
+    MAP_BUTTON(ImGuiKey_GamepadBack,        GLFW_GAMEPAD_BUTTON_BACK,           6);
+    MAP_BUTTON(ImGuiKey_GamepadFaceLeft,    GLFW_GAMEPAD_BUTTON_X,              2);     // Xbox X, PS Square
+    MAP_BUTTON(ImGuiKey_GamepadFaceRight,   GLFW_GAMEPAD_BUTTON_B,              1);     // Xbox B, PS Circle
+    MAP_BUTTON(ImGuiKey_GamepadFaceUp,      GLFW_GAMEPAD_BUTTON_Y,              3);     // Xbox Y, PS Triangle
+    MAP_BUTTON(ImGuiKey_GamepadFaceDown,    GLFW_GAMEPAD_BUTTON_A,              0);     // Xbox A, PS Cross
+    MAP_BUTTON(ImGuiKey_GamepadDpadLeft,    GLFW_GAMEPAD_BUTTON_DPAD_LEFT,      13);
+    MAP_BUTTON(ImGuiKey_GamepadDpadRight,   GLFW_GAMEPAD_BUTTON_DPAD_RIGHT,     11);
+    MAP_BUTTON(ImGuiKey_GamepadDpadUp,      GLFW_GAMEPAD_BUTTON_DPAD_UP,        10);
+    MAP_BUTTON(ImGuiKey_GamepadDpadDown,    GLFW_GAMEPAD_BUTTON_DPAD_DOWN,      12);
+    MAP_BUTTON(ImGuiKey_GamepadL1,          GLFW_GAMEPAD_BUTTON_LEFT_BUMPER,    4);
+    MAP_BUTTON(ImGuiKey_GamepadR1,          GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER,   5);
+    MAP_ANALOG(ImGuiKey_GamepadL2,          GLFW_GAMEPAD_AXIS_LEFT_TRIGGER,     4,      -0.75f,  +1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadR2,          GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER,    5,      -0.75f,  +1.0f);
+    MAP_BUTTON(ImGuiKey_GamepadL3,          GLFW_GAMEPAD_BUTTON_LEFT_THUMB,     8);
+    MAP_BUTTON(ImGuiKey_GamepadR3,          GLFW_GAMEPAD_BUTTON_RIGHT_THUMB,    9);
+    MAP_ANALOG(ImGuiKey_GamepadLStickLeft,  GLFW_GAMEPAD_AXIS_LEFT_X,           0,      -0.25f,  -1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadLStickRight, GLFW_GAMEPAD_AXIS_LEFT_X,           0,      +0.25f,  +1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadLStickUp,    GLFW_GAMEPAD_AXIS_LEFT_Y,           1,      -0.25f,  -1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadLStickDown,  GLFW_GAMEPAD_AXIS_LEFT_Y,           1,      +0.25f,  +1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadRStickLeft,  GLFW_GAMEPAD_AXIS_RIGHT_X,          2,      -0.25f,  -1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadRStickRight, GLFW_GAMEPAD_AXIS_RIGHT_X,          2,      +0.25f,  +1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadRStickUp,    GLFW_GAMEPAD_AXIS_RIGHT_Y,          3,      -0.25f,  -1.0f);
+    MAP_ANALOG(ImGuiKey_GamepadRStickDown,  GLFW_GAMEPAD_AXIS_RIGHT_Y,          3,      +0.25f,  +1.0f);
+    #undef MAP_BUTTON
+    #undef MAP_ANALOG
+}
+
+// - On Windows the process needs to be marked DPI-aware!! SDL2 doesn't do it by default. You can call ::SetProcessDPIAware() or call ImGui_ImplWin32_EnableDpiAwareness() from Win32 backend.
+// - Apple platforms use FramebufferScale so we always return 1.0f.
+// - Some accessibility applications are declaring virtual monitors with a DPI of 0.0f, see #7902. We preserve this value for caller to handle.
+float ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window)
+{
+#if GLFW_HAS_WAYLAND
+    if (ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window))
+        if (bd->IsWayland)
+            return 1.0f;
+#endif
+#if GLFW_HAS_PER_MONITOR_DPI && !(defined(__APPLE__) || defined(__EMSCRIPTEN__) || defined(__ANDROID__))
+    float x_scale, y_scale;
+    glfwGetWindowContentScale(window, &x_scale, &y_scale);
+    return x_scale;
+#else
+    IM_UNUSED(window);
+    return 1.0f;
+#endif
+}
+
+float ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor)
+{
+#if GLFW_HAS_WAYLAND
+    if (ImGui_ImplGlfw_IsWayland()) // We can't access our bd->IsWayland cache for a monitor.
+        return 1.0f;
+#endif
+#if GLFW_HAS_PER_MONITOR_DPI && !(defined(__APPLE__) || defined(__EMSCRIPTEN__) || defined(__ANDROID__))
+    float x_scale, y_scale;
+    glfwGetMonitorContentScale(monitor, &x_scale, &y_scale);
+    return x_scale;
+#else
+    IM_UNUSED(monitor);
+    return 1.0f;
+#endif
+}
+
+static void ImGui_ImplGlfw_GetWindowSizeAndFramebufferScale(GLFWwindow* window, ImVec2* out_size, ImVec2* out_framebuffer_scale)
+{
+    int w, h;
+    int display_w, display_h;
+    glfwGetWindowSize(window, &w, &h);
+    glfwGetFramebufferSize(window, &display_w, &display_h);
+    float fb_scale_x = (w > 0) ? (float)display_w / (float)w : 1.0f;
+    float fb_scale_y = (h > 0) ? (float)display_h / (float)h : 1.0f;
+#if GLFW_HAS_WAYLAND
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(window);
+    if (!bd->IsWayland)
+        fb_scale_x = fb_scale_y = 1.0f;
+#endif
+    if (out_size != nullptr)
+        *out_size = ImVec2((float)w, (float)h);
+    if (out_framebuffer_scale != nullptr)
+        *out_framebuffer_scale = ImVec2(fb_scale_x, fb_scale_y);
+}
+
+void ImGui_ImplGlfw_NewFrame()
+{
+    ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplGlfw_InitForXXX()?");
+
+    // Setup main viewport size (every frame to accommodate for window resizing)
+    ImGui_ImplGlfw_GetWindowSizeAndFramebufferScale(bd->Window, &io.DisplaySize, &io.DisplayFramebufferScale);
+
+    // Setup time step
+    // (Accept glfwGetTime() not returning a monotonically increasing value. Seems to happens on disconnecting peripherals and probably on VMs and Emscripten, see #6491, #6189, #6114, #3644)
+    double current_time = glfwGetTime();
+    if (current_time <= bd->Time)
+        current_time = bd->Time + 0.00001f;
+    io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
+    bd->Time = current_time;
+
+    ImGui_ImplGlfw_UpdateMouseData();
+    ImGui_ImplGlfw_UpdateMouseCursor();
+
+    // Update game controllers (if enabled and available)
+    ImGui_ImplGlfw_UpdateGamepads();
+}
+
+// GLFW doesn't provide a portable sleep function
+void ImGui_ImplGlfw_Sleep(int milliseconds)
+{
+#ifdef _WIN32
+    ::Sleep(milliseconds);
+#else
+    usleep(milliseconds * 1000);
+#endif
+}
+
+#ifdef EMSCRIPTEN_USE_EMBEDDED_GLFW3
+static EM_BOOL ImGui_ImplGlfw_OnCanvasSizeChange(int event_type, const EmscriptenUiEvent* event, void* user_data)
+{
+    ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)user_data;
+    double canvas_width, canvas_height;
+    emscripten_get_element_css_size(bd->CanvasSelector, &canvas_width, &canvas_height);
+    glfwSetWindowSize(bd->Window, (int)canvas_width, (int)canvas_height);
+    return true;
+}
+
+static EM_BOOL ImGui_ImplEmscripten_FullscreenChangeCallback(int event_type, const EmscriptenFullscreenChangeEvent* event, void* user_data)
+{
+    ImGui_ImplGlfw_Data* bd = (ImGui_ImplGlfw_Data*)user_data;
+    double canvas_width, canvas_height;
+    emscripten_get_element_css_size(bd->CanvasSelector, &canvas_width, &canvas_height);
+    glfwSetWindowSize(bd->Window, (int)canvas_width, (int)canvas_height);
+    return true;
+}
+
+// 'canvas_selector' is a CSS selector. The event listener is applied to the first element that matches the query.
+// STRING MUST PERSIST FOR THE APPLICATION DURATION. PLEASE USE A STRING LITERAL OR ENSURE POINTER WILL STAY VALID.
+void ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow*, const char* canvas_selector)
+{
+    IM_ASSERT(canvas_selector != nullptr);
+    ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplGlfw_InitForXXX()?");
+
+    bd->CanvasSelector = canvas_selector;
+    emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, bd, false, ImGui_ImplGlfw_OnCanvasSizeChange);
+    emscripten_set_fullscreenchange_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, bd, false, ImGui_ImplEmscripten_FullscreenChangeCallback);
+
+    // Change the size of the GLFW window according to the size of the canvas
+    ImGui_ImplGlfw_OnCanvasSizeChange(EMSCRIPTEN_EVENT_RESIZE, {}, bd);
+
+    // Register Emscripten Wheel callback to workaround issue in Emscripten GLFW Emulation (#6096)
+    // We intentionally do not check 'if (install_callbacks)' here, as some users may set it to false and call GLFW callback themselves.
+    // FIXME: May break chaining in case user registered their own Emscripten callback?
+    emscripten_set_wheel_callback(bd->CanvasSelector, bd, false, ImGui_ImplEmscripten_WheelCallback);
+}
+#elif defined(EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3)
+// When using --use-port=contrib.glfw3 for the GLFW implementation, you can override the behavior of this call
+// by invoking emscripten_glfw_make_canvas_resizable afterward.
+// See https://github.com/pongasoft/emscripten-glfw/blob/master/docs/Usage.md#how-to-make-the-canvas-resizable-by-the-user for an explanation
+void ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow* window, const char* canvas_selector)
+{
+  GLFWwindow* w = (GLFWwindow*)(EM_ASM_INT({ return Module.glfwGetWindow(UTF8ToString($0)); }, canvas_selector));
+  IM_ASSERT(window == w); // Sanity check
+  IM_UNUSED(w);
+  emscripten_glfw_make_canvas_resizable(window, "window", nullptr);
+}
+#endif // #ifdef EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3
+
+//-----------------------------------------------------------------------------
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tools/eeprom_editor/backend/imgui_impl_glfw.h b/tools/eeprom_editor/backend/imgui_impl_glfw.h
new file mode 100644
index 00000000..7dc8cb5e
--- /dev/null
+++ b/tools/eeprom_editor/backend/imgui_impl_glfw.h
@@ -0,0 +1,71 @@
+// dear imgui: Platform Backend for GLFW
+// This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
+// (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
+// (Requires: GLFW 3.0+. Prefer GLFW 3.3+/3.4+ for full feature support.)
+
+// Implemented features:
+//  [X] Platform: Clipboard support.
+//  [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only).
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy GLFW_KEY_* values are obsolete since 1.87 and not supported since 1.91.5]
+//  [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors) with GLFW 3.1+. Resizing cursors requires GLFW 3.4+! Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
+//  [X] Multiple Dear ImGui contexts support.
+// Missing features or Issues:
+//  [ ] Platform: Touch events are only correctly identified as Touch on Windows. This create issues with some interactions. GLFW doesn't provide a way to identify touch inputs from mouse inputs, we cannot call io.AddMouseSourceEvent() to identify the source. We provide a Windows-specific workaround.
+//  [ ] Platform: Missing ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress cursors.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+struct GLFWwindow;
+struct GLFWmonitor;
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks);
+IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks);
+IMGUI_IMPL_API bool     ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplGlfw_NewFrame();
+
+// Emscripten related initialization phase methods (call after ImGui_ImplGlfw_InitForOpenGL)
+#ifdef __EMSCRIPTEN__
+IMGUI_IMPL_API void     ImGui_ImplGlfw_InstallEmscriptenCallbacks(GLFWwindow* window, const char* canvas_selector);
+//static inline void    ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback(const char* canvas_selector) { ImGui_ImplGlfw_InstallEmscriptenCallbacks(nullptr, canvas_selector); } } // Renamed in 1.91.0
+#endif
+
+// GLFW callbacks install
+// - When calling Init with 'install_callbacks=true': ImGui_ImplGlfw_InstallCallbacks() is called. GLFW callbacks will be installed for you. They will chain-call user's previously installed callbacks, if any.
+// - When calling Init with 'install_callbacks=false': GLFW callbacks won't be installed. You will need to call individual function yourself from your own GLFW callbacks.
+IMGUI_IMPL_API void     ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window);
+
+// GLFW callbacks options:
+// - Set 'chain_for_all_windows=true' to enable chaining callbacks for all windows (including secondary viewports created by backends or by user)
+IMGUI_IMPL_API void     ImGui_ImplGlfw_SetCallbacksChainForAllWindows(bool chain_for_all_windows);
+
+// GLFW callbacks (individual callbacks to call yourself if you didn't install callbacks)
+IMGUI_IMPL_API void     ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused);        // Since 1.84
+IMGUI_IMPL_API void     ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered);        // Since 1.84
+IMGUI_IMPL_API void     ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y);   // Since 1.87
+IMGUI_IMPL_API void     ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c);
+IMGUI_IMPL_API void     ImGui_ImplGlfw_MonitorCallback(GLFWmonitor* monitor, int event);
+
+// GLFW helpers
+IMGUI_IMPL_API void     ImGui_ImplGlfw_Sleep(int milliseconds);
+IMGUI_IMPL_API float    ImGui_ImplGlfw_GetContentScaleForWindow(GLFWwindow* window);
+IMGUI_IMPL_API float    ImGui_ImplGlfw_GetContentScaleForMonitor(GLFWmonitor* monitor);
+
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tools/eeprom_editor/backend/imgui_impl_opengl3.cpp b/tools/eeprom_editor/backend/imgui_impl_opengl3.cpp
new file mode 100644
index 00000000..6348b01b
--- /dev/null
+++ b/tools/eeprom_editor/backend/imgui_impl_opengl3.cpp
@@ -0,0 +1,1066 @@
+// dear imgui: Renderer Backend for modern OpenGL with shaders / programmatic pipeline
+// - Desktop GL: 2.x 3.x 4.x
+// - Embedded GL: ES 2.0 (WebGL 1.0), ES 3.0 (WebGL 2.0)
+// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [x] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset) [Desktop OpenGL only!]
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+
+// About WebGL/ES:
+// - You need to '#define IMGUI_IMPL_OPENGL_ES2' or '#define IMGUI_IMPL_OPENGL_ES3' to use WebGL or OpenGL ES.
+// - This is done automatically on iOS, Android and Emscripten targets.
+// - For other targets, the define needs to be visible from the imgui_impl_opengl3.cpp compilation unit. If unsure, define globally or in imconfig.h.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// CHANGELOG
+// (minor and older changes stripped away, please see git history for details)
+//  2025-12-11: OpenGL: Fixed embedded loader multiple init/shutdown cycles broken on some platforms. (#8792, #9112)
+//  2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
+//  2025-07-22: OpenGL: Add and call embedded loader shutdown during ImGui_ImplOpenGL3_Shutdown() to facilitate multiple init/shutdown cycles in same process. (#8792)
+//  2025-07-15: OpenGL: Set GL_UNPACK_ALIGNMENT to 1 before updating textures (#8802) + restore non-WebGL/ES update path that doesn't require a CPU-side copy.
+//  2025-06-11: OpenGL: Added support for ImGuiBackendFlags_RendererHasTextures, for dynamic font atlas. Removed ImGui_ImplOpenGL3_CreateFontsTexture() and ImGui_ImplOpenGL3_DestroyFontsTexture().
+//  2025-06-04: OpenGL: Made GLES 3.20 contexts not access GL_CONTEXT_PROFILE_MASK nor GL_PRIMITIVE_RESTART. (#8664)
+//  2025-02-18: OpenGL: Lazily reinitialize embedded GL loader for when calling backend from e.g. other DLL boundaries. (#8406)
+//  2024-10-07: OpenGL: Changed default texture sampler to Clamp instead of Repeat/Wrap.
+//  2024-06-28: OpenGL: ImGui_ImplOpenGL3_NewFrame() recreates font texture if it has been destroyed by ImGui_ImplOpenGL3_DestroyFontsTexture(). (#7748)
+//  2024-05-07: OpenGL: Update loader for Linux to support EGL/GLVND. (#7562)
+//  2024-04-16: OpenGL: Detect ES3 contexts on desktop based on version string, to e.g. avoid calling glPolygonMode() on them. (#7447)
+//  2024-01-09: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" and variants, fixing regression on distros missing a symlink.
+//  2023-11-08: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" instead of "libGL.so.1", accommodating for NetBSD systems having only "libGL.so.3" available. (#6983)
+//  2023-10-05: OpenGL: Rename symbols in our internal loader so that LTO compilation with another copy of gl3w is possible. (#6875, #6668, #4445)
+//  2023-06-20: OpenGL: Fixed erroneous use glGetIntegerv(GL_CONTEXT_PROFILE_MASK) on contexts lower than 3.2. (#6539, #6333)
+//  2023-05-09: OpenGL: Support for glBindSampler() backup/restore on ES3. (#6375)
+//  2023-04-18: OpenGL: Restore front and back polygon mode separately when supported by context. (#6333)
+//  2023-03-23: OpenGL: Properly restoring "no shader program bound" if it was the case prior to running the rendering function. (#6267, #6220, #6224)
+//  2023-03-15: OpenGL: Fixed GL loader crash when GL_VERSION returns nullptr. (#6154, #4445, #3530)
+//  2023-03-06: OpenGL: Fixed restoration of a potentially deleted OpenGL program, by calling glIsProgram(). (#6220, #6224)
+//  2022-11-09: OpenGL: Reverted use of glBufferSubData(), too many corruptions issues + old issues seemingly can't be reproed with Intel drivers nowadays (revert 2021-12-15 and 2022-05-23 changes).
+//  2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11.
+//  2022-09-27: OpenGL: Added ability to '#define IMGUI_IMPL_OPENGL_DEBUG'.
+//  2022-05-23: OpenGL: Reworking 2021-12-15 "Using buffer orphaning" so it only happens on Intel GPU, seems to cause problems otherwise. (#4468, #4825, #4832, #5127).
+//  2022-05-13: OpenGL: Fixed state corruption on OpenGL ES 2.0 due to not preserving GL_ELEMENT_ARRAY_BUFFER_BINDING and vertex attribute states.
+//  2021-12-15: OpenGL: Using buffer orphaning + glBufferSubData(), seems to fix leaks with multi-viewports with some Intel HD drivers.
+//  2021-08-23: OpenGL: Fixed ES 3.0 shader ("#version 300 es") use normal precision floats to avoid wobbly rendering at HD resolutions.
+//  2021-08-19: OpenGL: Embed and use our own minimal GL loader (imgui_impl_opengl3_loader.h), removing requirement and support for third-party loader.
+//  2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
+//  2021-06-25: OpenGL: Use OES_vertex_array extension on Emscripten + backup/restore current state.
+//  2021-06-21: OpenGL: Destroy individual vertex/fragment shader objects right after they are linked into the main shader.
+//  2021-05-24: OpenGL: Access GL_CLIP_ORIGIN when "GL_ARB_clip_control" extension is detected, inside of just OpenGL 4.5 version.
+//  2021-05-19: OpenGL: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
+//  2021-04-06: OpenGL: Don't try to read GL_CLIP_ORIGIN unless we're OpenGL 4.5 or greater.
+//  2021-02-18: OpenGL: Change blending equation to preserve alpha in output buffer.
+//  2021-01-03: OpenGL: Backup, setup and restore GL_STENCIL_TEST state.
+//  2020-10-23: OpenGL: Backup, setup and restore GL_PRIMITIVE_RESTART state.
+//  2020-10-15: OpenGL: Use glGetString(GL_VERSION) instead of glGetIntegerv(GL_MAJOR_VERSION, ...) when the later returns zero (e.g. Desktop GL 2.x)
+//  2020-09-17: OpenGL: Fix to avoid compiling/calling glBindSampler() on ES or pre-3.3 context which have the defines set by a loader.
+//  2020-07-10: OpenGL: Added support for glad2 OpenGL loader.
+//  2020-05-08: OpenGL: Made default GLSL version 150 (instead of 130) on OSX.
+//  2020-04-21: OpenGL: Fixed handling of glClipControl(GL_UPPER_LEFT) by inverting projection matrix.
+//  2020-04-12: OpenGL: Fixed context version check mistakenly testing for 4.0+ instead of 3.2+ to enable ImGuiBackendFlags_RendererHasVtxOffset.
+//  2020-03-24: OpenGL: Added support for glbinding 2.x OpenGL loader.
+//  2020-01-07: OpenGL: Added support for glbinding 3.x OpenGL loader.
+//  2019-10-25: OpenGL: Using a combination of GL define and runtime GL version to decide whether to use glDrawElementsBaseVertex(). Fix building with pre-3.2 GL loaders.
+//  2019-09-22: OpenGL: Detect default GL loader using __has_include compiler facility.
+//  2019-09-16: OpenGL: Tweak initialization code to allow application calling ImGui_ImplOpenGL3_CreateFontsTexture() before the first NewFrame() call.
+//  2019-05-29: OpenGL: Desktop GL only: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
+//  2019-04-30: OpenGL: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
+//  2019-03-29: OpenGL: Not calling glBindBuffer more than necessary in the render loop.
+//  2019-03-15: OpenGL: Added a GL call + comments in ImGui_ImplOpenGL3_Init() to detect uninitialized GL function loaders early.
+//  2019-03-03: OpenGL: Fix support for ES 2.0 (WebGL 1.0).
+//  2019-02-20: OpenGL: Fix for OSX not supporting OpenGL 4.5, we don't try to read GL_CLIP_ORIGIN even if defined by the headers/loader.
+//  2019-02-11: OpenGL: Projecting clipping rectangles correctly using draw_data->FramebufferScale to allow multi-viewports for retina display.
+//  2019-02-01: OpenGL: Using GLSL 410 shaders for any version over 410 (e.g. 430, 450).
+//  2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
+//  2018-11-13: OpenGL: Support for GL 4.5's glClipControl(GL_UPPER_LEFT) / GL_CLIP_ORIGIN.
+//  2018-08-29: OpenGL: Added support for more OpenGL loaders: glew and glad, with comments indicative that any loader can be used.
+//  2018-08-09: OpenGL: Default to OpenGL ES 3 on iOS and Android. GLSL version default to "#version 300 ES".
+//  2018-07-30: OpenGL: Support for GLSL 300 ES and 410 core. Fixes for Emscripten compilation.
+//  2018-07-10: OpenGL: Support for more GLSL versions (based on the GLSL version string). Added error output when shaders fail to compile/link.
+//  2018-06-08: Misc: Extracted imgui_impl_opengl3.cpp/.h away from the old combined GLFW/SDL+OpenGL3 examples.
+//  2018-06-08: OpenGL: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
+//  2018-05-25: OpenGL: Removed unnecessary backup/restore of GL_ELEMENT_ARRAY_BUFFER_BINDING since this is part of the VAO state.
+//  2018-05-14: OpenGL: Making the call to glBindSampler() optional so 3.2 context won't fail if the function is a nullptr pointer.
+//  2018-03-06: OpenGL: Added const char* glsl_version parameter to ImGui_ImplOpenGL3_Init() so user can override the GLSL version e.g. "#version 150".
+//  2018-02-23: OpenGL: Create the VAO in the render function so the setup can more easily be used with multiple shared GL context.
+//  2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplSdlGL3_RenderDrawData() in the .h file so you can call it yourself.
+//  2018-01-07: OpenGL: Changed GLSL shader version from 330 to 150.
+//  2017-09-01: OpenGL: Save and restore current bound sampler. Save and restore current polygon mode.
+//  2017-05-01: OpenGL: Fixed save and restore of current blend func state.
+//  2017-05-01: OpenGL: Fixed save and restore of current GL_ACTIVE_TEXTURE.
+//  2016-09-05: OpenGL: Fixed save and restore of current scissor rectangle.
+//  2016-07-29: OpenGL: Explicitly setting GL_UNPACK_ROW_LENGTH to reduce issues because SDL changes it. (#752)
+
+//----------------------------------------
+// OpenGL    GLSL      GLSL
+// version   version   string
+//----------------------------------------
+//  2.0       110       "#version 110"
+//  2.1       120       "#version 120"
+//  3.0       130       "#version 130"
+//  3.1       140       "#version 140"
+//  3.2       150       "#version 150"
+//  3.3       330       "#version 330 core"
+//  4.0       400       "#version 400 core"
+//  4.1       410       "#version 410 core"
+//  4.2       420       "#version 410 core"
+//  4.3       430       "#version 430 core"
+//  ES 2.0    100       "#version 100"      = WebGL 1.0
+//  ES 3.0    300       "#version 300 es"   = WebGL 2.0
+//----------------------------------------
+
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include "imgui.h"
+#ifndef IMGUI_DISABLE
+#include "imgui_impl_opengl3.h"
+#include <stdio.h>
+#include <stdint.h>     // intptr_t
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif
+
+// Clang/GCC warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunknown-warning-option" // warning: ignore unknown flags
+#pragma clang diagnostic ignored "-Wold-style-cast"         // warning: use of old-style cast
+#pragma clang diagnostic ignored "-Wsign-conversion"        // warning: implicit conversion changes signedness
+#pragma clang diagnostic ignored "-Wunused-macros"          // warning: macro is not used
+#pragma clang diagnostic ignored "-Wnonportable-system-include-path"
+#pragma clang diagnostic ignored "-Wcast-function-type"     // warning: cast between incompatible function types (for loader)
+#endif
+#if defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpragmas"                  // warning: unknown option after '#pragma GCC diagnostic' kind
+#pragma GCC diagnostic ignored "-Wunknown-warning-option"   // warning: unknown warning group 'xxx'
+#pragma GCC diagnostic ignored "-Wcast-function-type"       // warning: cast between incompatible function types (for loader)
+#pragma GCC diagnostic ignored "-Wstrict-overflow"          // warning: assuming signed overflow does not occur when simplifying division / ..when changing X +- C1 cmp C2 to X cmp C2 -+ C1
+#endif
+
+// GL includes
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV))
+#include <OpenGLES/ES2/gl.h>    // Use GL ES 2
+#else
+#include <GLES2/gl2.h>          // Use GL ES 2
+#endif
+#if defined(__EMSCRIPTEN__)
+#ifndef GL_GLEXT_PROTOTYPES
+#define GL_GLEXT_PROTOTYPES
+#endif
+#include <GLES2/gl2ext.h>
+#endif
+#elif defined(IMGUI_IMPL_OPENGL_ES3)
+#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV))
+#include <OpenGLES/ES3/gl.h>    // Use GL ES 3
+#else
+#include <GLES3/gl3.h>          // Use GL ES 3
+#endif
+#elif !defined(IMGUI_IMPL_OPENGL_LOADER_CUSTOM)
+// Modern desktop OpenGL doesn't have a standard portable header file to load OpenGL function pointers.
+// Helper libraries are often used for this purpose! Here we are using our own minimal custom loader based on gl3w.
+// In the rest of your app/engine, you can use another loader of your choice (gl3w, glew, glad, glbinding, glext, glLoadGen, etc.).
+// If you happen to be developing a new feature for this backend (imgui_impl_opengl3.cpp):
+// - You may need to regenerate imgui_impl_opengl3_loader.h to add new symbols. See https://github.com/dearimgui/gl3w_stripped
+//   Typically you would run: python3 ./gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
+// - You can temporarily use an unstripped version. See https://github.com/dearimgui/gl3w_stripped/releases
+// Changes to this backend using new APIs should be accompanied by a regenerated stripped loader version.
+#define IMGL3W_IMPL
+#define IMGUI_IMPL_OPENGL_LOADER_IMGL3W
+#include "imgui_impl_opengl3_loader.h"
+#endif
+
+// Vertex arrays are not supported on ES2/WebGL1 unless Emscripten which uses an extension
+#ifndef IMGUI_IMPL_OPENGL_ES2
+#define IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+#elif defined(__EMSCRIPTEN__)
+#define IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+#define glBindVertexArray       glBindVertexArrayOES
+#define glGenVertexArrays       glGenVertexArraysOES
+#define glDeleteVertexArrays    glDeleteVertexArraysOES
+#define GL_VERTEX_ARRAY_BINDING GL_VERTEX_ARRAY_BINDING_OES
+#endif
+
+// Desktop GL 2.0+ has extension and glPolygonMode() which GL ES and WebGL don't have..
+// A desktop ES context can technically compile fine with our loader, so we also perform a runtime checks
+#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3)
+#define IMGUI_IMPL_OPENGL_HAS_EXTENSIONS        // has glGetIntegerv(GL_NUM_EXTENSIONS)
+#define IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE // may have glPolygonMode()
+#endif
+
+// Desktop GL 2.1+ and GL ES 3.0+ have glBindBuffer() with GL_PIXEL_UNPACK_BUFFER target.
+#if !defined(IMGUI_IMPL_OPENGL_ES2)
+#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
+#endif
+
+// Desktop GL 3.1+ has GL_PRIMITIVE_RESTART state
+#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_1)
+#define IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
+#endif
+
+// Desktop GL 3.2+ has glDrawElementsBaseVertex() which GL ES and WebGL don't have.
+#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_2)
+#define IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
+#endif
+
+// Desktop GL 3.3+ and GL ES 3.0+ have glBindSampler()
+#if !defined(IMGUI_IMPL_OPENGL_ES2) && (defined(IMGUI_IMPL_OPENGL_ES3) || defined(GL_VERSION_3_3))
+#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
+#endif
+
+// [Debugging]
+//#define IMGUI_IMPL_OPENGL_DEBUG
+#ifdef IMGUI_IMPL_OPENGL_DEBUG
+#include <stdio.h>
+#define GL_CALL(_CALL)      do { _CALL; GLenum gl_err = glGetError(); if (gl_err != 0) fprintf(stderr, "GL error 0x%x returned from '%s'.\n", gl_err, #_CALL); } while (0)  // Call with error check
+#else
+#define GL_CALL(_CALL)      _CALL   // Call without error check
+#endif
+
+// OpenGL Data
+struct ImGui_ImplOpenGL3_Data
+{
+    GLuint          GlVersion;               // Extracted at runtime using GL_MAJOR_VERSION, GL_MINOR_VERSION queries (e.g. 320 for GL 3.2)
+    char            GlslVersionString[32];   // Specified by user or detected based on compile time GL settings.
+    bool            GlProfileIsES2;
+    bool            GlProfileIsES3;
+    bool            GlProfileIsCompat;
+    GLint           GlProfileMask;
+    GLint           MaxTextureSize;
+    GLuint          ShaderHandle;
+    GLint           AttribLocationTex;       // Uniforms location
+    GLint           AttribLocationProjMtx;
+    GLuint          AttribLocationVtxPos;    // Vertex attributes location
+    GLuint          AttribLocationVtxUV;
+    GLuint          AttribLocationVtxColor;
+    unsigned int    VboHandle, ElementsHandle;
+    GLsizeiptr      VertexBufferSize;
+    GLsizeiptr      IndexBufferSize;
+    bool            HasPolygonMode;
+    bool            HasBindSampler;
+    bool            HasClipOrigin;
+    bool            UseBufferSubData;
+    ImVector<char>  TempBuffer;
+
+    ImGui_ImplOpenGL3_Data() { memset((void*)this, 0, sizeof(*this)); }
+};
+
+// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
+// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
+static ImGui_ImplOpenGL3_Data* ImGui_ImplOpenGL3_GetBackendData()
+{
+    return ImGui::GetCurrentContext() ? (ImGui_ImplOpenGL3_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
+}
+
+// OpenGL vertex attribute state (for ES 1.0 and ES 2.0 only)
+#ifndef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+struct ImGui_ImplOpenGL3_VtxAttribState
+{
+    GLint   Enabled, Size, Type, Normalized, Stride;
+    GLvoid* Ptr;
+
+    void GetState(GLint index)
+    {
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_ENABLED, &Enabled);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_SIZE, &Size);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_TYPE, &Type);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, &Normalized);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_STRIDE, &Stride);
+        glGetVertexAttribPointerv(index, GL_VERTEX_ATTRIB_ARRAY_POINTER, &Ptr);
+    }
+    void SetState(GLint index)
+    {
+        glVertexAttribPointer(index, Size, Type, (GLboolean)Normalized, Stride, Ptr);
+        if (Enabled) glEnableVertexAttribArray(index); else glDisableVertexAttribArray(index);
+    }
+};
+#endif
+
+// Not static to allow third-party code to use that if they want to (but undocumented)
+bool ImGui_ImplOpenGL3_InitLoader();
+bool ImGui_ImplOpenGL3_InitLoader()
+{
+    // Lazily initialize our loader if not already done
+    // (to facilitate handling multiple DLL boundaries and multiple context shutdowns we call this from all main entry points)
+#ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
+    if (glGetIntegerv == nullptr && imgl3wInit() != 0)
+    {
+        fprintf(stderr, "Failed to initialize OpenGL loader!\n");
+        return false;
+    }
+#endif
+    return true;
+}
+
+static void ImGui_ImplOpenGL3_ShutdownLoader()
+{
+#ifdef IMGUI_IMPL_OPENGL_LOADER_IMGL3W
+    imgl3wShutdown();
+#endif
+}
+
+// Functions
+bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    IMGUI_CHECKVERSION();
+    IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
+
+    // Initialize loader
+    if (!ImGui_ImplOpenGL3_InitLoader())
+        return false;
+
+    // Setup backend capabilities flags
+    ImGui_ImplOpenGL3_Data* bd = IM_NEW(ImGui_ImplOpenGL3_Data)();
+    io.BackendRendererUserData = (void*)bd;
+    io.BackendRendererName = "imgui_impl_opengl3";
+
+    // Query for GL version (e.g. 320 for GL 3.2)
+    const char* gl_version_str = (const char*)glGetString(GL_VERSION);
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+    // GLES 2
+    bd->GlVersion = 200;
+    bd->GlProfileIsES2 = true;
+    IM_UNUSED(gl_version_str);
+#else
+    // Desktop or GLES 3
+    GLint major = 0;
+    GLint minor = 0;
+    glGetIntegerv(GL_MAJOR_VERSION, &major);
+    glGetIntegerv(GL_MINOR_VERSION, &minor);
+    if (major == 0 && minor == 0)
+        sscanf(gl_version_str, "%d.%d", &major, &minor); // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
+    bd->GlVersion = (GLuint)(major * 100 + minor * 10);
+    glGetIntegerv(GL_MAX_TEXTURE_SIZE, &bd->MaxTextureSize);
+
+#if defined(IMGUI_IMPL_OPENGL_ES3)
+    bd->GlProfileIsES3 = true;
+#else
+    if (strncmp(gl_version_str, "OpenGL ES 3", 11) == 0)
+        bd->GlProfileIsES3 = true;
+#endif
+
+#if defined(GL_CONTEXT_PROFILE_MASK)
+    if (!bd->GlProfileIsES3 && bd->GlVersion >= 320)
+        glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &bd->GlProfileMask);
+    bd->GlProfileIsCompat = (bd->GlProfileMask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT) != 0;
+#endif
+
+    bd->UseBufferSubData = false;
+    /*
+    // Query vendor to enable glBufferSubData kludge
+#ifdef _WIN32
+    if (const char* vendor = (const char*)glGetString(GL_VENDOR))
+        if (strncmp(vendor, "Intel", 5) == 0)
+            bd->UseBufferSubData = true;
+#endif
+    */
+#endif
+
+#ifdef IMGUI_IMPL_OPENGL_DEBUG
+    printf("GlVersion = %d, \"%s\"\nGlProfileIsCompat = %d\nGlProfileMask = 0x%X\nGlProfileIsES2/IsEs3 = %d/%d\nGL_VENDOR = '%s'\nGL_RENDERER = '%s'\n", bd->GlVersion, gl_version_str, bd->GlProfileIsCompat, bd->GlProfileMask, bd->GlProfileIsES2, bd->GlProfileIsES3, (const char*)glGetString(GL_VENDOR), (const char*)glGetString(GL_RENDERER)); // [DEBUG]
+#endif
+
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
+    if (bd->GlVersion >= 320)
+        io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
+#endif
+    io.BackendFlags |= ImGuiBackendFlags_RendererHasTextures;       // We can honor ImGuiPlatformIO::Textures[] requests during render.
+
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+    platform_io.Renderer_TextureMaxWidth = platform_io.Renderer_TextureMaxHeight = (int)bd->MaxTextureSize;
+
+    // Store GLSL version string so we can refer to it later in case we recreate shaders.
+    // Note: GLSL version is NOT the same as GL version. Leave this to nullptr if unsure.
+    if (glsl_version == nullptr)
+    {
+#if defined(IMGUI_IMPL_OPENGL_ES2)
+        glsl_version = "#version 100";
+#elif defined(IMGUI_IMPL_OPENGL_ES3)
+        glsl_version = "#version 300 es";
+#elif defined(__APPLE__)
+        glsl_version = "#version 150";
+#else
+        glsl_version = "#version 130";
+#endif
+    }
+    IM_ASSERT((int)strlen(glsl_version) + 2 < IM_COUNTOF(bd->GlslVersionString));
+    strcpy(bd->GlslVersionString, glsl_version);
+    strcat(bd->GlslVersionString, "\n");
+
+    // Make an arbitrary GL call (we don't actually need the result)
+    // IF YOU GET A CRASH HERE: it probably means the OpenGL function loader didn't do its job. Let us know!
+    GLint current_texture;
+    glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);
+
+    // Detect extensions we support
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+    bd->HasPolygonMode = (!bd->GlProfileIsES2 && !bd->GlProfileIsES3);
+#endif
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
+    bd->HasBindSampler = (bd->GlVersion >= 330 || bd->GlProfileIsES3);
+#endif
+    bd->HasClipOrigin = (bd->GlVersion >= 450);
+#ifdef IMGUI_IMPL_OPENGL_HAS_EXTENSIONS
+    GLint num_extensions = 0;
+    glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions);
+    for (GLint i = 0; i < num_extensions; i++)
+    {
+        const char* extension = (const char*)glGetStringi(GL_EXTENSIONS, i);
+        if (extension != nullptr && strcmp(extension, "GL_ARB_clip_control") == 0)
+            bd->HasClipOrigin = true;
+    }
+#endif
+
+    return true;
+}
+
+void    ImGui_ImplOpenGL3_Shutdown()
+{
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
+    ImGuiIO& io = ImGui::GetIO();
+    ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
+
+    ImGui_ImplOpenGL3_DestroyDeviceObjects();
+
+    io.BackendRendererName = nullptr;
+    io.BackendRendererUserData = nullptr;
+    io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasTextures);
+    platform_io.ClearRendererHandlers();
+    IM_DELETE(bd);
+
+    ImGui_ImplOpenGL3_ShutdownLoader();
+}
+
+void    ImGui_ImplOpenGL3_NewFrame()
+{
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplOpenGL3_Init()?");
+
+    ImGui_ImplOpenGL3_InitLoader();
+    if (!bd->ShaderHandle)
+        if (!ImGui_ImplOpenGL3_CreateDeviceObjects())
+            IM_ASSERT(0 && "ImGui_ImplOpenGL3_CreateDeviceObjects() failed!");
+}
+
+static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height, GLuint vertex_array_object)
+{
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+
+    // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, polygon fill
+    glEnable(GL_BLEND);
+    glBlendEquation(GL_FUNC_ADD);
+    glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+    glDisable(GL_CULL_FACE);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_STENCIL_TEST);
+    glEnable(GL_SCISSOR_TEST);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
+    if (!bd->GlProfileIsES3 && bd->GlVersion >= 310)
+        glDisable(GL_PRIMITIVE_RESTART);
+#endif
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+    if (bd->HasPolygonMode)
+        glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+#endif
+
+    // Support for GL 4.5 rarely used glClipControl(GL_UPPER_LEFT)
+#if defined(GL_CLIP_ORIGIN)
+    bool clip_origin_lower_left = true;
+    if (bd->HasClipOrigin)
+    {
+        GLenum current_clip_origin = 0; glGetIntegerv(GL_CLIP_ORIGIN, (GLint*)&current_clip_origin);
+        if (current_clip_origin == GL_UPPER_LEFT)
+            clip_origin_lower_left = false;
+    }
+#endif
+
+    // Setup viewport, orthographic projection matrix
+    // Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
+    GL_CALL(glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height));
+    float L = draw_data->DisplayPos.x;
+    float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
+    float T = draw_data->DisplayPos.y;
+    float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
+#if defined(GL_CLIP_ORIGIN)
+    if (!clip_origin_lower_left) { float tmp = T; T = B; B = tmp; } // Swap top and bottom if origin is upper left
+#endif
+    const float ortho_projection[4][4] =
+    {
+        { 2.0f/(R-L),   0.0f,         0.0f,   0.0f },
+        { 0.0f,         2.0f/(T-B),   0.0f,   0.0f },
+        { 0.0f,         0.0f,        -1.0f,   0.0f },
+        { (R+L)/(L-R),  (T+B)/(B-T),  0.0f,   1.0f },
+    };
+    glUseProgram(bd->ShaderHandle);
+    glUniform1i(bd->AttribLocationTex, 0);
+    glUniformMatrix4fv(bd->AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]);
+
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
+    if (bd->HasBindSampler)
+        glBindSampler(0, 0); // We use combined texture/sampler state. Applications using GL 3.3 and GL ES 3.0 may set that otherwise.
+#endif
+
+    (void)vertex_array_object;
+#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    glBindVertexArray(vertex_array_object);
+#endif
+
+    // Bind vertex/index buffers and setup attributes for ImDrawVert
+    GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, bd->VboHandle));
+    GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bd->ElementsHandle));
+    GL_CALL(glEnableVertexAttribArray(bd->AttribLocationVtxPos));
+    GL_CALL(glEnableVertexAttribArray(bd->AttribLocationVtxUV));
+    GL_CALL(glEnableVertexAttribArray(bd->AttribLocationVtxColor));
+    GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxPos,   2, GL_FLOAT,         GL_FALSE, sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, pos)));
+    GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxUV,    2, GL_FLOAT,         GL_FALSE, sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, uv)));
+    GL_CALL(glVertexAttribPointer(bd->AttribLocationVtxColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, col)));
+}
+
+// OpenGL3 Render function.
+// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
+// This is in order to be able to run within an OpenGL engine that doesn't do so.
+void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
+{
+    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
+    int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
+    int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
+    if (fb_width <= 0 || fb_height <= 0)
+        return;
+
+    ImGui_ImplOpenGL3_InitLoader();
+
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+
+    // Catch up with texture updates. Most of the times, the list will have 1 element with an OK status, aka nothing to do.
+    // (This almost always points to ImGui::GetPlatformIO().Textures[] but is part of ImDrawData to allow overriding or disabling texture updates).
+    if (draw_data->Textures != nullptr)
+        for (ImTextureData* tex : *draw_data->Textures)
+            if (tex->Status != ImTextureStatus_OK)
+                ImGui_ImplOpenGL3_UpdateTexture(tex);
+
+    // Backup GL state
+    GLenum last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, (GLint*)&last_active_texture);
+    glActiveTexture(GL_TEXTURE0);
+    GLuint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, (GLint*)&last_program);
+    GLuint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, (GLint*)&last_texture);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
+    GLuint last_sampler; if (bd->HasBindSampler) { glGetIntegerv(GL_SAMPLER_BINDING, (GLint*)&last_sampler); } else { last_sampler = 0; }
+#endif
+    GLuint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, (GLint*)&last_array_buffer);
+#ifndef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    // This is part of VAO on OpenGL 3.0+ and OpenGL ES 3.0+.
+    GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
+    ImGui_ImplOpenGL3_VtxAttribState last_vtx_attrib_state_pos; last_vtx_attrib_state_pos.GetState(bd->AttribLocationVtxPos);
+    ImGui_ImplOpenGL3_VtxAttribState last_vtx_attrib_state_uv; last_vtx_attrib_state_uv.GetState(bd->AttribLocationVtxUV);
+    ImGui_ImplOpenGL3_VtxAttribState last_vtx_attrib_state_color; last_vtx_attrib_state_color.GetState(bd->AttribLocationVtxColor);
+#endif
+#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object);
+#endif
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+    GLint last_polygon_mode[2]; if (bd->HasPolygonMode) { glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode); }
+#endif
+    GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
+    GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
+    GLenum last_blend_src_rgb; glGetIntegerv(GL_BLEND_SRC_RGB, (GLint*)&last_blend_src_rgb);
+    GLenum last_blend_dst_rgb; glGetIntegerv(GL_BLEND_DST_RGB, (GLint*)&last_blend_dst_rgb);
+    GLenum last_blend_src_alpha; glGetIntegerv(GL_BLEND_SRC_ALPHA, (GLint*)&last_blend_src_alpha);
+    GLenum last_blend_dst_alpha; glGetIntegerv(GL_BLEND_DST_ALPHA, (GLint*)&last_blend_dst_alpha);
+    GLenum last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, (GLint*)&last_blend_equation_rgb);
+    GLenum last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, (GLint*)&last_blend_equation_alpha);
+    GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
+    GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
+    GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
+    GLboolean last_enable_stencil_test = glIsEnabled(GL_STENCIL_TEST);
+    GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
+    GLboolean last_enable_primitive_restart = (!bd->GlProfileIsES3 && bd->GlVersion >= 310) ? glIsEnabled(GL_PRIMITIVE_RESTART) : GL_FALSE;
+#endif
+
+    // Setup desired GL state
+    // Recreate the VAO every time (this is to easily allow multiple GL contexts to be rendered to. VAO are not shared among GL contexts)
+    // The renderer would actually work without any VAO bound, but then our VertexAttrib calls would overwrite the default one currently bound.
+    GLuint vertex_array_object = 0;
+#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    GL_CALL(glGenVertexArrays(1, &vertex_array_object));
+#endif
+    ImGui_ImplOpenGL3_SetupRenderState(draw_data, fb_width, fb_height, vertex_array_object);
+
+    // Will project scissor/clipping rectangles into framebuffer space
+    ImVec2 clip_off = draw_data->DisplayPos;         // (0,0) unless using multi-viewports
+    ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
+
+    // Render command lists
+    for (const ImDrawList* draw_list : draw_data->CmdLists)
+    {
+        // Upload vertex/index buffers
+        // - OpenGL drivers are in a very sorry state nowadays....
+        //   During 2021 we attempted to switch from glBufferData() to orphaning+glBufferSubData() following reports
+        //   of leaks on Intel GPU when using multi-viewports on Windows.
+        // - After this we kept hearing of various display corruptions issues. We started disabling on non-Intel GPU, but issues still got reported on Intel.
+        // - We are now back to using exclusively glBufferData(). So bd->UseBufferSubData IS ALWAYS FALSE in this code.
+        //   We are keeping the old code path for a while in case people finding new issues may want to test the bd->UseBufferSubData path.
+        // - See https://github.com/ocornut/imgui/issues/4468 and please report any corruption issues.
+        const GLsizeiptr vtx_buffer_size = (GLsizeiptr)draw_list->VtxBuffer.Size * (int)sizeof(ImDrawVert);
+        const GLsizeiptr idx_buffer_size = (GLsizeiptr)draw_list->IdxBuffer.Size * (int)sizeof(ImDrawIdx);
+        if (bd->UseBufferSubData)
+        {
+            if (bd->VertexBufferSize < vtx_buffer_size)
+            {
+                bd->VertexBufferSize = vtx_buffer_size;
+                GL_CALL(glBufferData(GL_ARRAY_BUFFER, bd->VertexBufferSize, nullptr, GL_STREAM_DRAW));
+            }
+            if (bd->IndexBufferSize < idx_buffer_size)
+            {
+                bd->IndexBufferSize = idx_buffer_size;
+                GL_CALL(glBufferData(GL_ELEMENT_ARRAY_BUFFER, bd->IndexBufferSize, nullptr, GL_STREAM_DRAW));
+            }
+            GL_CALL(glBufferSubData(GL_ARRAY_BUFFER, 0, vtx_buffer_size, (const GLvoid*)draw_list->VtxBuffer.Data));
+            GL_CALL(glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, idx_buffer_size, (const GLvoid*)draw_list->IdxBuffer.Data));
+        }
+        else
+        {
+            GL_CALL(glBufferData(GL_ARRAY_BUFFER, vtx_buffer_size, (const GLvoid*)draw_list->VtxBuffer.Data, GL_STREAM_DRAW));
+            GL_CALL(glBufferData(GL_ELEMENT_ARRAY_BUFFER, idx_buffer_size, (const GLvoid*)draw_list->IdxBuffer.Data, GL_STREAM_DRAW));
+        }
+
+        for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++)
+        {
+            const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i];
+            if (pcmd->UserCallback != nullptr)
+            {
+                // User callback, registered via ImDrawList::AddCallback()
+                // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
+                if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
+                    ImGui_ImplOpenGL3_SetupRenderState(draw_data, fb_width, fb_height, vertex_array_object);
+                else
+                    pcmd->UserCallback(draw_list, pcmd);
+            }
+            else
+            {
+                // Project scissor/clipping rectangles into framebuffer space
+                ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
+                ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
+                if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
+                    continue;
+
+                // Apply scissor/clipping rectangle (Y is inverted in OpenGL)
+                GL_CALL(glScissor((int)clip_min.x, (int)((float)fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y)));
+
+                // Bind texture, Draw
+                GL_CALL(glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID()));
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
+                if (bd->GlVersion >= 320)
+                    GL_CALL(glDrawElementsBaseVertex(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, (void*)(intptr_t)(pcmd->IdxOffset * sizeof(ImDrawIdx)), (GLint)pcmd->VtxOffset));
+                else
+#endif
+                GL_CALL(glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, (void*)(intptr_t)(pcmd->IdxOffset * sizeof(ImDrawIdx))));
+            }
+        }
+    }
+
+    // Destroy the temporary VAO
+#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    GL_CALL(glDeleteVertexArrays(1, &vertex_array_object));
+#endif
+
+    // Restore modified GL state
+    // This "glIsProgram()" check is required because if the program is "pending deletion" at the time of binding backup, it will have been deleted by now and will cause an OpenGL error. See #6220.
+    if (last_program == 0 || glIsProgram(last_program)) glUseProgram(last_program);
+    glBindTexture(GL_TEXTURE_2D, last_texture);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
+    if (bd->HasBindSampler)
+        glBindSampler(0, last_sampler);
+#endif
+    glActiveTexture(last_active_texture);
+#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    glBindVertexArray(last_vertex_array_object);
+#endif
+    glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
+#ifndef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
+    last_vtx_attrib_state_pos.SetState(bd->AttribLocationVtxPos);
+    last_vtx_attrib_state_uv.SetState(bd->AttribLocationVtxUV);
+    last_vtx_attrib_state_color.SetState(bd->AttribLocationVtxColor);
+#endif
+    glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
+    glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha);
+    if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
+    if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
+    if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);
+    if (last_enable_stencil_test) glEnable(GL_STENCIL_TEST); else glDisable(GL_STENCIL_TEST);
+    if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
+    if (!bd->GlProfileIsES3 && bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
+#endif
+
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+    // Desktop OpenGL 3.0 and OpenGL 3.1 had separate polygon draw modes for front-facing and back-facing faces of polygons
+    if (bd->HasPolygonMode) { if (bd->GlVersion <= 310 || bd->GlProfileIsCompat) { glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]); glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]); } else { glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]); } }
+#endif // IMGUI_IMPL_OPENGL_MAY_HAVE_POLYGON_MODE
+
+    glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
+    glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
+    (void)bd; // Not all compilation paths use this
+}
+
+static void ImGui_ImplOpenGL3_DestroyTexture(ImTextureData* tex)
+{
+    GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
+    glDeleteTextures(1, &gl_tex_id);
+
+    // Clear identifiers and mark as destroyed (in order to allow e.g. calling InvalidateDeviceObjects while running)
+    tex->SetTexID(ImTextureID_Invalid);
+    tex->SetStatus(ImTextureStatus_Destroyed);
+}
+
+void ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex)
+{
+    // FIXME: Consider backing up and restoring
+    if (tex->Status == ImTextureStatus_WantCreate || tex->Status == ImTextureStatus_WantUpdates)
+    {
+#ifdef GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
+        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
+#endif
+#ifdef GL_UNPACK_ALIGNMENT
+        GL_CALL(glPixelStorei(GL_UNPACK_ALIGNMENT, 1));
+#endif
+    }
+
+    if (tex->Status == ImTextureStatus_WantCreate)
+    {
+        // Create and upload new texture to graphics system
+        //IMGUI_DEBUG_LOG("UpdateTexture #%03d: WantCreate %dx%d\n", tex->UniqueID, tex->Width, tex->Height);
+        IM_ASSERT(tex->TexID == 0 && tex->BackendUserData == nullptr);
+        IM_ASSERT(tex->Format == ImTextureFormat_RGBA32);
+        const void* pixels = tex->GetPixels();
+        GLuint gl_texture_id = 0;
+
+        // Upload texture to graphics system
+        // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+        GLint last_texture;
+        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
+        GL_CALL(glGenTextures(1, &gl_texture_id));
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_texture_id));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
+        GL_CALL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
+        GL_CALL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex->Width, tex->Height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels));
+
+        // Store identifiers
+        tex->SetTexID((ImTextureID)(intptr_t)gl_texture_id);
+        tex->SetStatus(ImTextureStatus_OK);
+
+        // Restore state
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture));
+    }
+    else if (tex->Status == ImTextureStatus_WantUpdates)
+    {
+        // Update selected blocks. We only ever write to textures regions which have never been used before!
+        // This backend choose to use tex->Updates[] but you can use tex->UpdateRect to upload a single region.
+        GLint last_texture;
+        GL_CALL(glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture));
+
+        GLuint gl_tex_id = (GLuint)(intptr_t)tex->TexID;
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, gl_tex_id));
+#if GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
+        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, tex->Width));
+        for (ImTextureRect& r : tex->Updates)
+            GL_CALL(glTexSubImage2D(GL_TEXTURE_2D, 0, r.x, r.y, r.w, r.h, GL_RGBA, GL_UNSIGNED_BYTE, tex->GetPixelsAt(r.x, r.y)));
+        GL_CALL(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0));
+#else
+        // GL ES doesn't have GL_UNPACK_ROW_LENGTH, so we need to (A) copy to a contiguous buffer or (B) upload line by line.
+        ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+        for (ImTextureRect& r : tex->Updates)
+        {
+            const int src_pitch = r.w * tex->BytesPerPixel;
+            bd->TempBuffer.resize(r.h * src_pitch);
+            char* out_p = bd->TempBuffer.Data;
+            for (int y = 0; y < r.h; y++, out_p += src_pitch)
+                memcpy(out_p, tex->GetPixelsAt(r.x, r.y + y), src_pitch);
+            IM_ASSERT(out_p == bd->TempBuffer.end());
+            GL_CALL(glTexSubImage2D(GL_TEXTURE_2D, 0, r.x, r.y, r.w, r.h, GL_RGBA, GL_UNSIGNED_BYTE, bd->TempBuffer.Data));
+        }
+#endif
+        tex->SetStatus(ImTextureStatus_OK);
+        GL_CALL(glBindTexture(GL_TEXTURE_2D, last_texture)); // Restore state
+    }
+    else if (tex->Status == ImTextureStatus_WantDestroy && tex->UnusedFrames > 0)
+        ImGui_ImplOpenGL3_DestroyTexture(tex);
+}
+
+// If you get an error please report on github. You may try different GL context version or GLSL version. See GL<>GLSL version table at the top of this file.
+static bool CheckShader(GLuint handle, const char* desc)
+{
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    GLint status = 0, log_length = 0;
+    glGetShaderiv(handle, GL_COMPILE_STATUS, &status);
+    glGetShaderiv(handle, GL_INFO_LOG_LENGTH, &log_length);
+    if ((GLboolean)status == GL_FALSE)
+        fprintf(stderr, "ERROR: ImGui_ImplOpenGL3_CreateDeviceObjects: failed to compile %s! With GLSL: %s\n", desc, bd->GlslVersionString);
+    if (log_length > 1)
+    {
+        ImVector<char> buf;
+        buf.resize((int)(log_length + 1));
+        glGetShaderInfoLog(handle, log_length, nullptr, (GLchar*)buf.begin());
+        fprintf(stderr, "%s\n", buf.begin());
+    }
+    return (GLboolean)status == GL_TRUE;
+}
+
+// If you get an error please report on GitHub. You may try different GL context version or GLSL version.
+static bool CheckProgram(GLuint handle, const char* desc)
+{
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    GLint status = 0, log_length = 0;
+    glGetProgramiv(handle, GL_LINK_STATUS, &status);
+    glGetProgramiv(handle, GL_INFO_LOG_LENGTH, &log_length);
+    if ((GLboolean)status == GL_FALSE)
+        fprintf(stderr, "ERROR: ImGui_ImplOpenGL3_CreateDeviceObjects: failed to link %s! With GLSL %s\n", desc, bd->GlslVersionString);
+    if (log_length > 1)
+    {
+        ImVector<char> buf;
+        buf.resize((int)(log_length + 1));
+        glGetProgramInfoLog(handle, log_length, nullptr, (GLchar*)buf.begin());
+        fprintf(stderr, "%s\n", buf.begin());
+    }
+    return (GLboolean)status == GL_TRUE;
+}
+
+bool    ImGui_ImplOpenGL3_CreateDeviceObjects()
+{
+    ImGui_ImplOpenGL3_InitLoader();
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+
+    // Backup GL state
+    GLint last_texture, last_array_buffer;
+    glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
+    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
+    GLint last_pixel_unpack_buffer = 0;
+    if (bd->GlVersion >= 210) { glGetIntegerv(GL_PIXEL_UNPACK_BUFFER_BINDING, &last_pixel_unpack_buffer); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); }
+#endif
+#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    GLint last_vertex_array;
+    glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
+#endif
+
+    // Parse GLSL version string
+    int glsl_version = 130;
+    sscanf(bd->GlslVersionString, "#version %d", &glsl_version);
+
+    const GLchar* vertex_shader_glsl_120 =
+        "uniform mat4 ProjMtx;\n"
+        "attribute vec2 Position;\n"
+        "attribute vec2 UV;\n"
+        "attribute vec4 Color;\n"
+        "varying vec2 Frag_UV;\n"
+        "varying vec4 Frag_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    Frag_UV = UV;\n"
+        "    Frag_Color = Color;\n"
+        "    gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
+        "}\n";
+
+    const GLchar* vertex_shader_glsl_130 =
+        "uniform mat4 ProjMtx;\n"
+        "in vec2 Position;\n"
+        "in vec2 UV;\n"
+        "in vec4 Color;\n"
+        "out vec2 Frag_UV;\n"
+        "out vec4 Frag_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    Frag_UV = UV;\n"
+        "    Frag_Color = Color;\n"
+        "    gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
+        "}\n";
+
+    const GLchar* vertex_shader_glsl_300_es =
+        "precision highp float;\n"
+        "layout (location = 0) in vec2 Position;\n"
+        "layout (location = 1) in vec2 UV;\n"
+        "layout (location = 2) in vec4 Color;\n"
+        "uniform mat4 ProjMtx;\n"
+        "out vec2 Frag_UV;\n"
+        "out vec4 Frag_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    Frag_UV = UV;\n"
+        "    Frag_Color = Color;\n"
+        "    gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
+        "}\n";
+
+    const GLchar* vertex_shader_glsl_410_core =
+        "layout (location = 0) in vec2 Position;\n"
+        "layout (location = 1) in vec2 UV;\n"
+        "layout (location = 2) in vec4 Color;\n"
+        "uniform mat4 ProjMtx;\n"
+        "out vec2 Frag_UV;\n"
+        "out vec4 Frag_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    Frag_UV = UV;\n"
+        "    Frag_Color = Color;\n"
+        "    gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
+        "}\n";
+
+    const GLchar* fragment_shader_glsl_120 =
+        "#ifdef GL_ES\n"
+        "    precision mediump float;\n"
+        "#endif\n"
+        "uniform sampler2D Texture;\n"
+        "varying vec2 Frag_UV;\n"
+        "varying vec4 Frag_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    gl_FragColor = Frag_Color * texture2D(Texture, Frag_UV.st);\n"
+        "}\n";
+
+    const GLchar* fragment_shader_glsl_130 =
+        "uniform sampler2D Texture;\n"
+        "in vec2 Frag_UV;\n"
+        "in vec4 Frag_Color;\n"
+        "out vec4 Out_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
+        "}\n";
+
+    const GLchar* fragment_shader_glsl_300_es =
+        "precision mediump float;\n"
+        "uniform sampler2D Texture;\n"
+        "in vec2 Frag_UV;\n"
+        "in vec4 Frag_Color;\n"
+        "layout (location = 0) out vec4 Out_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
+        "}\n";
+
+    const GLchar* fragment_shader_glsl_410_core =
+        "in vec2 Frag_UV;\n"
+        "in vec4 Frag_Color;\n"
+        "uniform sampler2D Texture;\n"
+        "layout (location = 0) out vec4 Out_Color;\n"
+        "void main()\n"
+        "{\n"
+        "    Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
+        "}\n";
+
+    // Select shaders matching our GLSL versions
+    const GLchar* vertex_shader = nullptr;
+    const GLchar* fragment_shader = nullptr;
+    if (glsl_version < 130)
+    {
+        vertex_shader = vertex_shader_glsl_120;
+        fragment_shader = fragment_shader_glsl_120;
+    }
+    else if (glsl_version >= 410)
+    {
+        vertex_shader = vertex_shader_glsl_410_core;
+        fragment_shader = fragment_shader_glsl_410_core;
+    }
+    else if (glsl_version == 300)
+    {
+        vertex_shader = vertex_shader_glsl_300_es;
+        fragment_shader = fragment_shader_glsl_300_es;
+    }
+    else
+    {
+        vertex_shader = vertex_shader_glsl_130;
+        fragment_shader = fragment_shader_glsl_130;
+    }
+
+    // Create shaders
+    const GLchar* vertex_shader_with_version[2] = { bd->GlslVersionString, vertex_shader };
+    GLuint vert_handle;
+    GL_CALL(vert_handle = glCreateShader(GL_VERTEX_SHADER));
+    glShaderSource(vert_handle, 2, vertex_shader_with_version, nullptr);
+    glCompileShader(vert_handle);
+    if (!CheckShader(vert_handle, "vertex shader"))
+        return false;
+
+    const GLchar* fragment_shader_with_version[2] = { bd->GlslVersionString, fragment_shader };
+    GLuint frag_handle;
+    GL_CALL(frag_handle = glCreateShader(GL_FRAGMENT_SHADER));
+    glShaderSource(frag_handle, 2, fragment_shader_with_version, nullptr);
+    glCompileShader(frag_handle);
+    if (!CheckShader(frag_handle, "fragment shader"))
+        return false;
+
+    // Link
+    bd->ShaderHandle = glCreateProgram();
+    glAttachShader(bd->ShaderHandle, vert_handle);
+    glAttachShader(bd->ShaderHandle, frag_handle);
+    glLinkProgram(bd->ShaderHandle);
+    if (!CheckProgram(bd->ShaderHandle, "shader program"))
+        return false;
+
+    glDetachShader(bd->ShaderHandle, vert_handle);
+    glDetachShader(bd->ShaderHandle, frag_handle);
+    glDeleteShader(vert_handle);
+    glDeleteShader(frag_handle);
+
+    bd->AttribLocationTex = glGetUniformLocation(bd->ShaderHandle, "Texture");
+    bd->AttribLocationProjMtx = glGetUniformLocation(bd->ShaderHandle, "ProjMtx");
+    bd->AttribLocationVtxPos = (GLuint)glGetAttribLocation(bd->ShaderHandle, "Position");
+    bd->AttribLocationVtxUV = (GLuint)glGetAttribLocation(bd->ShaderHandle, "UV");
+    bd->AttribLocationVtxColor = (GLuint)glGetAttribLocation(bd->ShaderHandle, "Color");
+
+    // Create buffers
+    glGenBuffers(1, &bd->VboHandle);
+    glGenBuffers(1, &bd->ElementsHandle);
+
+    // Restore modified GL state
+    glBindTexture(GL_TEXTURE_2D, last_texture);
+    glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
+#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
+    if (bd->GlVersion >= 210) { glBindBuffer(GL_PIXEL_UNPACK_BUFFER, last_pixel_unpack_buffer); }
+#endif
+#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    glBindVertexArray(last_vertex_array);
+#endif
+
+    return true;
+}
+
+void    ImGui_ImplOpenGL3_DestroyDeviceObjects()
+{
+    ImGui_ImplOpenGL3_InitLoader();
+    ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
+    if (bd->VboHandle)      { glDeleteBuffers(1, &bd->VboHandle); bd->VboHandle = 0; }
+    if (bd->ElementsHandle) { glDeleteBuffers(1, &bd->ElementsHandle); bd->ElementsHandle = 0; }
+    if (bd->ShaderHandle)   { glDeleteProgram(bd->ShaderHandle); bd->ShaderHandle = 0; }
+
+    // Destroy all textures
+    for (ImTextureData* tex : ImGui::GetPlatformIO().Textures)
+        if (tex->RefCount == 1)
+            ImGui_ImplOpenGL3_DestroyTexture(tex);
+}
+
+//-----------------------------------------------------------------------------
+
+#if defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tools/eeprom_editor/backend/imgui_impl_opengl3.h b/tools/eeprom_editor/backend/imgui_impl_opengl3.h
new file mode 100644
index 00000000..aabe04b0
--- /dev/null
+++ b/tools/eeprom_editor/backend/imgui_impl_opengl3.h
@@ -0,0 +1,68 @@
+// dear imgui: Renderer Backend for modern OpenGL with shaders / programmatic pipeline
+// - Desktop GL: 2.x 3.x 4.x
+// - Embedded GL: ES 2.0 (WebGL 1.0), ES 3.0 (WebGL 2.0)
+// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
+
+// Implemented features:
+//  [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture as texture identifier. Read the FAQ about ImTextureID/ImTextureRef!
+//  [x] Renderer: Large meshes support (64k+ vertices) even with 16-bit indices (ImGuiBackendFlags_RendererHasVtxOffset) [Desktop OpenGL only!]
+//  [X] Renderer: Texture updates support for dynamic font atlas (ImGuiBackendFlags_RendererHasTextures).
+
+// About WebGL/ES:
+// - You need to '#define IMGUI_IMPL_OPENGL_ES2' or '#define IMGUI_IMPL_OPENGL_ES3' to use WebGL or OpenGL ES.
+// - This is done automatically on iOS, Android and Emscripten targets.
+// - For other targets, the define needs to be visible from the imgui_impl_opengl3.cpp compilation unit. If unsure, define globally or in imconfig.h.
+
+// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
+// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
+// Learn about Dear ImGui:
+// - FAQ                  https://dearimgui.com/faq
+// - Getting Started      https://dearimgui.com/getting-started
+// - Documentation        https://dearimgui.com/docs (same as your local docs/ folder).
+// - Introduction, links and more at the top of imgui.cpp
+
+// About GLSL version:
+//  The 'glsl_version' initialization parameter should be nullptr (default) or a "#version XXX" string.
+//  On computer platform the GLSL version default to "#version 130". On OpenGL ES 3 platform it defaults to "#version 300 es"
+//  Only override if your GL version doesn't handle this GLSL version. See GLSL version table at the top of imgui_impl_opengl3.cpp.
+
+#pragma once
+#include "imgui.h"      // IMGUI_IMPL_API
+#ifndef IMGUI_DISABLE
+
+// Follow "Getting Started" link and check examples/ folder to learn about using backends!
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_Init(const char* glsl_version = nullptr);
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_Shutdown();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_NewFrame();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data);
+
+// (Optional) Called by Init/NewFrame/Shutdown
+IMGUI_IMPL_API bool     ImGui_ImplOpenGL3_CreateDeviceObjects();
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
+
+// (Advanced) Use e.g. if you need to precisely control the timing of texture updates (e.g. for staged rendering), by setting ImDrawData::Textures = nullptr to handle this manually.
+IMGUI_IMPL_API void     ImGui_ImplOpenGL3_UpdateTexture(ImTextureData* tex);
+
+// Configuration flags to add in your imconfig file:
+//#define IMGUI_IMPL_OPENGL_ES2     // Enable ES 2 (Auto-detected on Emscripten)
+//#define IMGUI_IMPL_OPENGL_ES3     // Enable ES 3 (Auto-detected on iOS/Android)
+
+// You can explicitly select GLES2 or GLES3 API by using one of the '#define IMGUI_IMPL_OPENGL_LOADER_XXX' in imconfig.h or compiler command-line.
+#if !defined(IMGUI_IMPL_OPENGL_ES2) \
+ && !defined(IMGUI_IMPL_OPENGL_ES3)
+
+// Try to detect GLES on matching platforms
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif
+#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV)) || (defined(__ANDROID__))
+#define IMGUI_IMPL_OPENGL_ES3               // iOS, Android  -> GL ES 3, "#version 300 es"
+#elif defined(__EMSCRIPTEN__) || defined(__amigaos4__)
+#define IMGUI_IMPL_OPENGL_ES2               // Emscripten    -> GL ES 2, "#version 100"
+#else
+// Otherwise imgui_impl_opengl3_loader.h will be used.
+#endif
+
+#endif
+
+#endif // #ifndef IMGUI_DISABLE
diff --git a/tools/eeprom_editor/backend/imgui_impl_opengl3_loader.h b/tools/eeprom_editor/backend/imgui_impl_opengl3_loader.h
new file mode 100644
index 00000000..2c485841
--- /dev/null
+++ b/tools/eeprom_editor/backend/imgui_impl_opengl3_loader.h
@@ -0,0 +1,958 @@
+//-----------------------------------------------------------------------------
+// About imgui_impl_opengl3_loader.h:
+//
+// We embed our own OpenGL loader to not require user to provide their own or to have to use ours,
+// which proved to be endless problems for users.
+// Our loader is custom-generated, based on gl3w but automatically filtered to only include
+// enums/functions that we use in our imgui_impl_opengl3.cpp source file in order to be small.
+//
+// YOU SHOULD NOT NEED TO INCLUDE/USE THIS DIRECTLY. THIS IS USED BY imgui_impl_opengl3.cpp ONLY.
+// THE REST OF YOUR APP SHOULD USE A DIFFERENT GL LOADER: ANY GL LOADER OF YOUR CHOICE.
+//
+// IF YOU GET BUILD ERRORS IN THIS FILE (commonly macro redefinitions or function redefinitions):
+// IT LIKELY MEANS THAT YOU ARE BUILDING 'imgui_impl_opengl3.cpp' OR INCLUDING 'imgui_impl_opengl3_loader.h'
+// IN THE SAME COMPILATION UNIT AS ONE OF YOUR FILE WHICH IS USING A THIRD-PARTY OPENGL LOADER.
+// (e.g. COULD HAPPEN IF YOU ARE DOING A UNITY/JUMBO BUILD, OR INCLUDING .CPP FILES FROM OTHERS)
+// YOU SHOULD NOT BUILD BOTH IN THE SAME COMPILATION UNIT.
+// BUT IF YOU REALLY WANT TO, you can '#define IMGUI_IMPL_OPENGL_LOADER_CUSTOM' and imgui_impl_opengl3.cpp
+// WILL NOT BE USING OUR LOADER, AND INSTEAD EXPECT ANOTHER/YOUR LOADER TO BE AVAILABLE IN THE COMPILATION UNIT.
+//
+// Regenerate with:
+//   python3 gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
+//
+// More info:
+//   https://github.com/dearimgui/gl3w_stripped
+//   https://github.com/ocornut/imgui/issues/4445
+//-----------------------------------------------------------------------------
+
+/*
+ * This file was generated with gl3w_gen.py, part of imgl3w
+ * (hosted at https://github.com/dearimgui/gl3w_stripped)
+ *
+ * This is free and unencumbered software released into the public domain.
+ *
+ * Anyone is free to copy, modify, publish, use, compile, sell, or
+ * distribute this software, either in source code form or as a compiled
+ * binary, for any purpose, commercial or non-commercial, and by any
+ * means.
+ *
+ * In jurisdictions that recognize copyright laws, the author or authors
+ * of this software dedicate any and all copyright interest in the
+ * software to the public domain. We make this dedication for the benefit
+ * of the public at large and to the detriment of our heirs and
+ * successors. We intend this dedication to be an overt act of
+ * relinquishment in perpetuity of all present and future rights to this
+ * software under copyright law.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __gl3w_h_
+#define __gl3w_h_
+
+// Adapted from KHR/khrplatform.h to avoid including entire file.
+#ifndef __khrplatform_h_
+typedef          float         khronos_float_t;
+typedef signed   char          khronos_int8_t;
+typedef unsigned char          khronos_uint8_t;
+typedef signed   short int     khronos_int16_t;
+typedef unsigned short int     khronos_uint16_t;
+#ifdef _WIN64
+typedef signed   long long int khronos_intptr_t;
+typedef signed   long long int khronos_ssize_t;
+#else
+typedef signed   long  int     khronos_intptr_t;
+typedef signed   long  int     khronos_ssize_t;
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+typedef signed   __int64       khronos_int64_t;
+typedef unsigned __int64       khronos_uint64_t;
+#elif (defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100)
+#include <stdint.h>
+typedef          int64_t       khronos_int64_t;
+typedef          uint64_t      khronos_uint64_t;
+#else
+typedef signed   long long     khronos_int64_t;
+typedef unsigned long long     khronos_uint64_t;
+#endif
+#endif  // __khrplatform_h_
+
+#ifndef __gl_glcorearb_h_
+#define __gl_glcorearb_h_ 1
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*
+** Copyright 2013-2020 The Khronos Group Inc.
+** SPDX-License-Identifier: MIT
+**
+** This header is generated from the Khronos OpenGL / OpenGL ES XML
+** API Registry. The current version of the Registry, generator scripts
+** used to make the header, and the header can be found at
+**   https://github.com/KhronosGroup/OpenGL-Registry
+*/
+#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+#endif
+#ifndef APIENTRY
+#define APIENTRY
+#endif
+#ifndef APIENTRYP
+#define APIENTRYP APIENTRY *
+#endif
+#ifndef GLAPI
+#define GLAPI extern
+#endif
+/* glcorearb.h is for use with OpenGL core profile implementations.
+** It should should be placed in the same directory as gl.h and
+** included as <GL/glcorearb.h>.
+**
+** glcorearb.h includes only APIs in the latest OpenGL core profile
+** implementation together with APIs in newer ARB extensions which 
+** can be supported by the core profile. It does not, and never will
+** include functionality removed from the core profile, such as
+** fixed-function vertex and fragment processing.
+**
+** Do not #include both <GL/glcorearb.h> and either of <GL/gl.h> or
+** <GL/glext.h> in the same source file.
+*/
+/* Generated C header for:
+ * API: gl
+ * Profile: core
+ * Versions considered: .*
+ * Versions emitted: .*
+ * Default extensions included: glcore
+ * Additional extensions included: _nomatch_^
+ * Extensions removed: _nomatch_^
+ */
+#ifndef GL_VERSION_1_0
+typedef void GLvoid;
+typedef unsigned int GLenum;
+
+typedef khronos_float_t GLfloat;
+typedef int GLint;
+typedef int GLsizei;
+typedef unsigned int GLbitfield;
+typedef double GLdouble;
+typedef unsigned int GLuint;
+typedef unsigned char GLboolean;
+typedef khronos_uint8_t GLubyte;
+#define GL_COLOR_BUFFER_BIT               0x00004000
+#define GL_FALSE                          0
+#define GL_TRUE                           1
+#define GL_TRIANGLES                      0x0004
+#define GL_ONE                            1
+#define GL_SRC_ALPHA                      0x0302
+#define GL_ONE_MINUS_SRC_ALPHA            0x0303
+#define GL_FRONT                          0x0404
+#define GL_BACK                           0x0405
+#define GL_FRONT_AND_BACK                 0x0408
+#define GL_POLYGON_MODE                   0x0B40
+#define GL_CULL_FACE                      0x0B44
+#define GL_DEPTH_TEST                     0x0B71
+#define GL_STENCIL_TEST                   0x0B90
+#define GL_VIEWPORT                       0x0BA2
+#define GL_BLEND                          0x0BE2
+#define GL_SCISSOR_BOX                    0x0C10
+#define GL_SCISSOR_TEST                   0x0C11
+#define GL_UNPACK_ROW_LENGTH              0x0CF2
+#define GL_UNPACK_ALIGNMENT               0x0CF5
+#define GL_PACK_ALIGNMENT                 0x0D05
+#define GL_MAX_TEXTURE_SIZE               0x0D33
+#define GL_TEXTURE_2D                     0x0DE1
+#define GL_UNSIGNED_BYTE                  0x1401
+#define GL_UNSIGNED_SHORT                 0x1403
+#define GL_UNSIGNED_INT                   0x1405
+#define GL_FLOAT                          0x1406
+#define GL_RGBA                           0x1908
+#define GL_FILL                           0x1B02
+#define GL_VENDOR                         0x1F00
+#define GL_RENDERER                       0x1F01
+#define GL_VERSION                        0x1F02
+#define GL_EXTENSIONS                     0x1F03
+#define GL_NEAREST                        0x2600
+#define GL_LINEAR                         0x2601
+#define GL_TEXTURE_MAG_FILTER             0x2800
+#define GL_TEXTURE_MIN_FILTER             0x2801
+#define GL_TEXTURE_WRAP_S                 0x2802
+#define GL_TEXTURE_WRAP_T                 0x2803
+#define GL_REPEAT                         0x2901
+typedef void (APIENTRYP PFNGLPOLYGONMODEPROC) (GLenum face, GLenum mode);
+typedef void (APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
+typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
+typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
+typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask);
+typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
+typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
+typedef void (APIENTRYP PFNGLFLUSHPROC) (void);
+typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
+typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
+typedef GLenum (APIENTRYP PFNGLGETERRORPROC) (void);
+typedef void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data);
+typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
+typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC) (GLenum cap);
+typedef void (APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glPolygonMode (GLenum face, GLenum mode);
+GLAPI void APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height);
+GLAPI void APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param);
+GLAPI void APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
+GLAPI void APIENTRY glClear (GLbitfield mask);
+GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+GLAPI void APIENTRY glDisable (GLenum cap);
+GLAPI void APIENTRY glEnable (GLenum cap);
+GLAPI void APIENTRY glFlush (void);
+GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param);
+GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
+GLAPI GLenum APIENTRY glGetError (void);
+GLAPI void APIENTRY glGetIntegerv (GLenum pname, GLint *data);
+GLAPI const GLubyte *APIENTRY glGetString (GLenum name);
+GLAPI GLboolean APIENTRY glIsEnabled (GLenum cap);
+GLAPI void APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height);
+#endif
+#endif /* GL_VERSION_1_0 */
+#ifndef GL_VERSION_1_1
+typedef khronos_float_t GLclampf;
+typedef double GLclampd;
+#define GL_TEXTURE_BINDING_2D             0x8069
+typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices);
+typedef void (APIENTRYP PFNGLTEXSUBIMAGE2DPROC) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
+typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
+typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices);
+GLAPI void APIENTRY glTexSubImage2D (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
+GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture);
+GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures);
+GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures);
+#endif
+#endif /* GL_VERSION_1_1 */
+#ifndef GL_VERSION_1_2
+#define GL_CLAMP_TO_EDGE                  0x812F
+#endif /* GL_VERSION_1_2 */
+#ifndef GL_VERSION_1_3
+#define GL_TEXTURE0                       0x84C0
+#define GL_ACTIVE_TEXTURE                 0x84E0
+typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glActiveTexture (GLenum texture);
+#endif
+#endif /* GL_VERSION_1_3 */
+#ifndef GL_VERSION_1_4
+#define GL_BLEND_DST_RGB                  0x80C8
+#define GL_BLEND_SRC_RGB                  0x80C9
+#define GL_BLEND_DST_ALPHA                0x80CA
+#define GL_BLEND_SRC_ALPHA                0x80CB
+#define GL_FUNC_ADD                       0x8006
+typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
+typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
+GLAPI void APIENTRY glBlendEquation (GLenum mode);
+#endif
+#endif /* GL_VERSION_1_4 */
+#ifndef GL_VERSION_1_5
+typedef khronos_ssize_t GLsizeiptr;
+typedef khronos_intptr_t GLintptr;
+#define GL_ARRAY_BUFFER                   0x8892
+#define GL_ELEMENT_ARRAY_BUFFER           0x8893
+#define GL_ARRAY_BUFFER_BINDING           0x8894
+#define GL_ELEMENT_ARRAY_BUFFER_BINDING   0x8895
+#define GL_STREAM_DRAW                    0x88E0
+typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
+typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers);
+typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers);
+typedef void (APIENTRYP PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage);
+typedef void (APIENTRYP PFNGLBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const void *data);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBindBuffer (GLenum target, GLuint buffer);
+GLAPI void APIENTRY glDeleteBuffers (GLsizei n, const GLuint *buffers);
+GLAPI void APIENTRY glGenBuffers (GLsizei n, GLuint *buffers);
+GLAPI void APIENTRY glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage);
+GLAPI void APIENTRY glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const void *data);
+#endif
+#endif /* GL_VERSION_1_5 */
+#ifndef GL_VERSION_2_0
+typedef char GLchar;
+typedef khronos_int16_t GLshort;
+typedef khronos_int8_t GLbyte;
+typedef khronos_uint16_t GLushort;
+#define GL_BLEND_EQUATION_RGB             0x8009
+#define GL_VERTEX_ATTRIB_ARRAY_ENABLED    0x8622
+#define GL_VERTEX_ATTRIB_ARRAY_SIZE       0x8623
+#define GL_VERTEX_ATTRIB_ARRAY_STRIDE     0x8624
+#define GL_VERTEX_ATTRIB_ARRAY_TYPE       0x8625
+#define GL_VERTEX_ATTRIB_ARRAY_POINTER    0x8645
+#define GL_BLEND_EQUATION_ALPHA           0x883D
+#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
+#define GL_FRAGMENT_SHADER                0x8B30
+#define GL_VERTEX_SHADER                  0x8B31
+#define GL_COMPILE_STATUS                 0x8B81
+#define GL_LINK_STATUS                    0x8B82
+#define GL_INFO_LOG_LENGTH                0x8B84
+#define GL_CURRENT_PROGRAM                0x8B8D
+#define GL_UPPER_LEFT                     0x8CA2
+typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC) (GLenum modeRGB, GLenum modeAlpha);
+typedef void (APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader);
+typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader);
+typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void);
+typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type);
+typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader);
+typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader);
+typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint index);
+typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index);
+typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name);
+typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name);
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC) (GLuint index, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum pname, void **pointer);
+typedef GLboolean (APIENTRYP PFNGLISPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
+typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program);
+typedef void (APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0);
+typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glBlendEquationSeparate (GLenum modeRGB, GLenum modeAlpha);
+GLAPI void APIENTRY glAttachShader (GLuint program, GLuint shader);
+GLAPI void APIENTRY glCompileShader (GLuint shader);
+GLAPI GLuint APIENTRY glCreateProgram (void);
+GLAPI GLuint APIENTRY glCreateShader (GLenum type);
+GLAPI void APIENTRY glDeleteProgram (GLuint program);
+GLAPI void APIENTRY glDeleteShader (GLuint shader);
+GLAPI void APIENTRY glDetachShader (GLuint program, GLuint shader);
+GLAPI void APIENTRY glDisableVertexAttribArray (GLuint index);
+GLAPI void APIENTRY glEnableVertexAttribArray (GLuint index);
+GLAPI GLint APIENTRY glGetAttribLocation (GLuint program, const GLchar *name);
+GLAPI void APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params);
+GLAPI void APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+GLAPI void APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params);
+GLAPI void APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
+GLAPI GLint APIENTRY glGetUniformLocation (GLuint program, const GLchar *name);
+GLAPI void APIENTRY glGetVertexAttribiv (GLuint index, GLenum pname, GLint *params);
+GLAPI void APIENTRY glGetVertexAttribPointerv (GLuint index, GLenum pname, void **pointer);
+GLAPI GLboolean APIENTRY glIsProgram (GLuint program);
+GLAPI void APIENTRY glLinkProgram (GLuint program);
+GLAPI void APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
+GLAPI void APIENTRY glUseProgram (GLuint program);
+GLAPI void APIENTRY glUniform1i (GLint location, GLint v0);
+GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
+GLAPI void APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
+#endif
+#endif /* GL_VERSION_2_0 */
+#ifndef GL_VERSION_2_1
+#define GL_PIXEL_UNPACK_BUFFER            0x88EC
+#define GL_PIXEL_UNPACK_BUFFER_BINDING    0x88EF
+#endif /* GL_VERSION_2_1 */
+#ifndef GL_VERSION_3_0
+typedef khronos_uint16_t GLhalf;
+#define GL_MAJOR_VERSION                  0x821B
+#define GL_MINOR_VERSION                  0x821C
+#define GL_NUM_EXTENSIONS                 0x821D
+#define GL_FRAMEBUFFER_SRGB               0x8DB9
+#define GL_VERTEX_ARRAY_BINDING           0x85B5
+typedef void (APIENTRYP PFNGLGETBOOLEANI_VPROC) (GLenum target, GLuint index, GLboolean *data);
+typedef void (APIENTRYP PFNGLGETINTEGERI_VPROC) (GLenum target, GLuint index, GLint *data);
+typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index);
+typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC) (GLuint array);
+typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint *arrays);
+typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI const GLubyte *APIENTRY glGetStringi (GLenum name, GLuint index);
+GLAPI void APIENTRY glBindVertexArray (GLuint array);
+GLAPI void APIENTRY glDeleteVertexArrays (GLsizei n, const GLuint *arrays);
+GLAPI void APIENTRY glGenVertexArrays (GLsizei n, GLuint *arrays);
+#endif
+#endif /* GL_VERSION_3_0 */
+#ifndef GL_VERSION_3_1
+#define GL_VERSION_3_1 1
+#define GL_PRIMITIVE_RESTART              0x8F9D
+#endif /* GL_VERSION_3_1 */
+#ifndef GL_VERSION_3_2
+#define GL_VERSION_3_2 1
+typedef struct __GLsync *GLsync;
+typedef khronos_uint64_t GLuint64;
+typedef khronos_int64_t GLint64;
+#define GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002
+#define GL_CONTEXT_PROFILE_MASK           0x9126
+typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
+typedef void (APIENTRYP PFNGLGETINTEGER64I_VPROC) (GLenum target, GLuint index, GLint64 *data);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glDrawElementsBaseVertex (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
+#endif
+#endif /* GL_VERSION_3_2 */
+#ifndef GL_VERSION_3_3
+#define GL_VERSION_3_3 1
+#define GL_SAMPLER_BINDING                0x8919
+typedef void (APIENTRYP PFNGLGENSAMPLERSPROC) (GLsizei count, GLuint *samplers);
+typedef void (APIENTRYP PFNGLDELETESAMPLERSPROC) (GLsizei count, const GLuint *samplers);
+typedef void (APIENTRYP PFNGLBINDSAMPLERPROC) (GLuint unit, GLuint sampler);
+typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIPROC) (GLuint sampler, GLenum pname, GLint param);
+#ifdef GL_GLEXT_PROTOTYPES
+GLAPI void APIENTRY glGenSamplers (GLsizei count, GLuint *samplers);
+GLAPI void APIENTRY glDeleteSamplers (GLsizei count, const GLuint *samplers);
+GLAPI void APIENTRY glBindSampler (GLuint unit, GLuint sampler);
+GLAPI void APIENTRY glSamplerParameteri (GLuint sampler, GLenum pname, GLint param);
+#endif
+#endif /* GL_VERSION_3_3 */
+#ifndef GL_VERSION_4_1
+typedef void (APIENTRYP PFNGLGETFLOATI_VPROC) (GLenum target, GLuint index, GLfloat *data);
+typedef void (APIENTRYP PFNGLGETDOUBLEI_VPROC) (GLenum target, GLuint index, GLdouble *data);
+#endif /* GL_VERSION_4_1 */
+#ifndef GL_VERSION_4_3
+typedef void (APIENTRY  *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+#endif /* GL_VERSION_4_3 */
+#ifndef GL_VERSION_4_5
+#define GL_CLIP_ORIGIN                    0x935C
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint *param);
+typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param);
+#endif /* GL_VERSION_4_5 */
+#ifndef GL_ARB_bindless_texture
+typedef khronos_uint64_t GLuint64EXT;
+#endif /* GL_ARB_bindless_texture */
+#ifndef GL_ARB_cl_event
+struct _cl_context;
+struct _cl_event;
+#endif /* GL_ARB_cl_event */
+#ifndef GL_ARB_clip_control
+#define GL_ARB_clip_control 1
+#endif /* GL_ARB_clip_control */
+#ifndef GL_ARB_debug_output
+typedef void (APIENTRY  *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+#endif /* GL_ARB_debug_output */
+#ifndef GL_EXT_EGL_image_storage
+typedef void *GLeglImageOES;
+#endif /* GL_EXT_EGL_image_storage */
+#ifndef GL_EXT_direct_state_access
+typedef void (APIENTRYP PFNGLGETFLOATI_VEXTPROC) (GLenum pname, GLuint index, GLfloat *params);
+typedef void (APIENTRYP PFNGLGETDOUBLEI_VEXTPROC) (GLenum pname, GLuint index, GLdouble *params);
+typedef void (APIENTRYP PFNGLGETPOINTERI_VEXTPROC) (GLenum pname, GLuint index, void **params);
+typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param);
+typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, void **param);
+#endif /* GL_EXT_direct_state_access */
+#ifndef GL_NV_draw_vulkan_image
+typedef void (APIENTRY  *GLVULKANPROCNV)(void);
+#endif /* GL_NV_draw_vulkan_image */
+#ifndef GL_NV_gpu_shader5
+typedef khronos_int64_t GLint64EXT;
+#endif /* GL_NV_gpu_shader5 */
+#ifndef GL_NV_vertex_buffer_unified_memory
+typedef void (APIENTRYP PFNGLGETINTEGERUI64I_VNVPROC) (GLenum value, GLuint index, GLuint64EXT *result);
+#endif /* GL_NV_vertex_buffer_unified_memory */
+#ifdef __cplusplus
+}
+#endif
+#endif
+
+#ifndef GL3W_API
+#define GL3W_API
+#endif
+
+#ifndef __gl_h_
+#define __gl_h_
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define GL3W_OK 0
+#define GL3W_ERROR_INIT -1
+#define GL3W_ERROR_LIBRARY_OPEN -2
+#define GL3W_ERROR_OPENGL_VERSION -3
+
+typedef void (*GL3WglProc)(void);
+typedef GL3WglProc (*GL3WGetProcAddressProc)(const char *proc);
+
+/* gl3w api */
+GL3W_API int imgl3wInit(void);
+GL3W_API int imgl3wInit2(GL3WGetProcAddressProc proc);
+GL3W_API void imgl3wShutdown(void);
+GL3W_API int imgl3wIsSupported(int major, int minor);
+GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc);
+
+/* gl3w internal state */
+union ImGL3WProcs {
+    GL3WglProc ptr[63];
+    struct {
+        PFNGLACTIVETEXTUREPROC            ActiveTexture;
+        PFNGLATTACHSHADERPROC             AttachShader;
+        PFNGLBINDBUFFERPROC               BindBuffer;
+        PFNGLBINDSAMPLERPROC              BindSampler;
+        PFNGLBINDTEXTUREPROC              BindTexture;
+        PFNGLBINDVERTEXARRAYPROC          BindVertexArray;
+        PFNGLBLENDEQUATIONPROC            BlendEquation;
+        PFNGLBLENDEQUATIONSEPARATEPROC    BlendEquationSeparate;
+        PFNGLBLENDFUNCSEPARATEPROC        BlendFuncSeparate;
+        PFNGLBUFFERDATAPROC               BufferData;
+        PFNGLBUFFERSUBDATAPROC            BufferSubData;
+        PFNGLCLEARPROC                    Clear;
+        PFNGLCLEARCOLORPROC               ClearColor;
+        PFNGLCOMPILESHADERPROC            CompileShader;
+        PFNGLCREATEPROGRAMPROC            CreateProgram;
+        PFNGLCREATESHADERPROC             CreateShader;
+        PFNGLDELETEBUFFERSPROC            DeleteBuffers;
+        PFNGLDELETEPROGRAMPROC            DeleteProgram;
+        PFNGLDELETESAMPLERSPROC           DeleteSamplers;
+        PFNGLDELETESHADERPROC             DeleteShader;
+        PFNGLDELETETEXTURESPROC           DeleteTextures;
+        PFNGLDELETEVERTEXARRAYSPROC       DeleteVertexArrays;
+        PFNGLDETACHSHADERPROC             DetachShader;
+        PFNGLDISABLEPROC                  Disable;
+        PFNGLDISABLEVERTEXATTRIBARRAYPROC DisableVertexAttribArray;
+        PFNGLDRAWELEMENTSPROC             DrawElements;
+        PFNGLDRAWELEMENTSBASEVERTEXPROC   DrawElementsBaseVertex;
+        PFNGLENABLEPROC                   Enable;
+        PFNGLENABLEVERTEXATTRIBARRAYPROC  EnableVertexAttribArray;
+        PFNGLFLUSHPROC                    Flush;
+        PFNGLGENBUFFERSPROC               GenBuffers;
+        PFNGLGENSAMPLERSPROC              GenSamplers;
+        PFNGLGENTEXTURESPROC              GenTextures;
+        PFNGLGENVERTEXARRAYSPROC          GenVertexArrays;
+        PFNGLGETATTRIBLOCATIONPROC        GetAttribLocation;
+        PFNGLGETERRORPROC                 GetError;
+        PFNGLGETINTEGERVPROC              GetIntegerv;
+        PFNGLGETPROGRAMINFOLOGPROC        GetProgramInfoLog;
+        PFNGLGETPROGRAMIVPROC             GetProgramiv;
+        PFNGLGETSHADERINFOLOGPROC         GetShaderInfoLog;
+        PFNGLGETSHADERIVPROC              GetShaderiv;
+        PFNGLGETSTRINGPROC                GetString;
+        PFNGLGETSTRINGIPROC               GetStringi;
+        PFNGLGETUNIFORMLOCATIONPROC       GetUniformLocation;
+        PFNGLGETVERTEXATTRIBPOINTERVPROC  GetVertexAttribPointerv;
+        PFNGLGETVERTEXATTRIBIVPROC        GetVertexAttribiv;
+        PFNGLISENABLEDPROC                IsEnabled;
+        PFNGLISPROGRAMPROC                IsProgram;
+        PFNGLLINKPROGRAMPROC              LinkProgram;
+        PFNGLPIXELSTOREIPROC              PixelStorei;
+        PFNGLPOLYGONMODEPROC              PolygonMode;
+        PFNGLREADPIXELSPROC               ReadPixels;
+        PFNGLSAMPLERPARAMETERIPROC        SamplerParameteri;
+        PFNGLSCISSORPROC                  Scissor;
+        PFNGLSHADERSOURCEPROC             ShaderSource;
+        PFNGLTEXIMAGE2DPROC               TexImage2D;
+        PFNGLTEXPARAMETERIPROC            TexParameteri;
+        PFNGLTEXSUBIMAGE2DPROC            TexSubImage2D;
+        PFNGLUNIFORM1IPROC                Uniform1i;
+        PFNGLUNIFORMMATRIX4FVPROC         UniformMatrix4fv;
+        PFNGLUSEPROGRAMPROC               UseProgram;
+        PFNGLVERTEXATTRIBPOINTERPROC      VertexAttribPointer;
+        PFNGLVIEWPORTPROC                 Viewport;
+    } gl;
+};
+
+GL3W_API extern union ImGL3WProcs imgl3wProcs;
+
+/* OpenGL functions */
+#define glActiveTexture                   imgl3wProcs.gl.ActiveTexture
+#define glAttachShader                    imgl3wProcs.gl.AttachShader
+#define glBindBuffer                      imgl3wProcs.gl.BindBuffer
+#define glBindSampler                     imgl3wProcs.gl.BindSampler
+#define glBindTexture                     imgl3wProcs.gl.BindTexture
+#define glBindVertexArray                 imgl3wProcs.gl.BindVertexArray
+#define glBlendEquation                   imgl3wProcs.gl.BlendEquation
+#define glBlendEquationSeparate           imgl3wProcs.gl.BlendEquationSeparate
+#define glBlendFuncSeparate               imgl3wProcs.gl.BlendFuncSeparate
+#define glBufferData                      imgl3wProcs.gl.BufferData
+#define glBufferSubData                   imgl3wProcs.gl.BufferSubData
+#define glClear                           imgl3wProcs.gl.Clear
+#define glClearColor                      imgl3wProcs.gl.ClearColor
+#define glCompileShader                   imgl3wProcs.gl.CompileShader
+#define glCreateProgram                   imgl3wProcs.gl.CreateProgram
+#define glCreateShader                    imgl3wProcs.gl.CreateShader
+#define glDeleteBuffers                   imgl3wProcs.gl.DeleteBuffers
+#define glDeleteProgram                   imgl3wProcs.gl.DeleteProgram
+#define glDeleteSamplers                  imgl3wProcs.gl.DeleteSamplers
+#define glDeleteShader                    imgl3wProcs.gl.DeleteShader
+#define glDeleteTextures                  imgl3wProcs.gl.DeleteTextures
+#define glDeleteVertexArrays              imgl3wProcs.gl.DeleteVertexArrays
+#define glDetachShader                    imgl3wProcs.gl.DetachShader
+#define glDisable                         imgl3wProcs.gl.Disable
+#define glDisableVertexAttribArray        imgl3wProcs.gl.DisableVertexAttribArray
+#define glDrawElements                    imgl3wProcs.gl.DrawElements
+#define glDrawElementsBaseVertex          imgl3wProcs.gl.DrawElementsBaseVertex
+#define glEnable                          imgl3wProcs.gl.Enable
+#define glEnableVertexAttribArray         imgl3wProcs.gl.EnableVertexAttribArray
+#define glFlush                           imgl3wProcs.gl.Flush
+#define glGenBuffers                      imgl3wProcs.gl.GenBuffers
+#define glGenSamplers                     imgl3wProcs.gl.GenSamplers
+#define glGenTextures                     imgl3wProcs.gl.GenTextures
+#define glGenVertexArrays                 imgl3wProcs.gl.GenVertexArrays
+#define glGetAttribLocation               imgl3wProcs.gl.GetAttribLocation
+#define glGetError                        imgl3wProcs.gl.GetError
+#define glGetIntegerv                     imgl3wProcs.gl.GetIntegerv
+#define glGetProgramInfoLog               imgl3wProcs.gl.GetProgramInfoLog
+#define glGetProgramiv                    imgl3wProcs.gl.GetProgramiv
+#define glGetShaderInfoLog                imgl3wProcs.gl.GetShaderInfoLog
+#define glGetShaderiv                     imgl3wProcs.gl.GetShaderiv
+#define glGetString                       imgl3wProcs.gl.GetString
+#define glGetStringi                      imgl3wProcs.gl.GetStringi
+#define glGetUniformLocation              imgl3wProcs.gl.GetUniformLocation
+#define glGetVertexAttribPointerv         imgl3wProcs.gl.GetVertexAttribPointerv
+#define glGetVertexAttribiv               imgl3wProcs.gl.GetVertexAttribiv
+#define glIsEnabled                       imgl3wProcs.gl.IsEnabled
+#define glIsProgram                       imgl3wProcs.gl.IsProgram
+#define glLinkProgram                     imgl3wProcs.gl.LinkProgram
+#define glPixelStorei                     imgl3wProcs.gl.PixelStorei
+#define glPolygonMode                     imgl3wProcs.gl.PolygonMode
+#define glReadPixels                      imgl3wProcs.gl.ReadPixels
+#define glSamplerParameteri               imgl3wProcs.gl.SamplerParameteri
+#define glScissor                         imgl3wProcs.gl.Scissor
+#define glShaderSource                    imgl3wProcs.gl.ShaderSource
+#define glTexImage2D                      imgl3wProcs.gl.TexImage2D
+#define glTexParameteri                   imgl3wProcs.gl.TexParameteri
+#define glTexSubImage2D                   imgl3wProcs.gl.TexSubImage2D
+#define glUniform1i                       imgl3wProcs.gl.Uniform1i
+#define glUniformMatrix4fv                imgl3wProcs.gl.UniformMatrix4fv
+#define glUseProgram                      imgl3wProcs.gl.UseProgram
+#define glVertexAttribPointer             imgl3wProcs.gl.VertexAttribPointer
+#define glViewport                        imgl3wProcs.gl.Viewport
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+#ifdef IMGL3W_IMPL
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+
+#define GL3W_ARRAY_SIZE(x)  (sizeof(x) / sizeof((x)[0]))
+
+#if defined(_WIN32)
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+
+static HMODULE libgl = NULL;
+typedef PROC(__stdcall* GL3WglGetProcAddr)(LPCSTR);
+static GL3WglGetProcAddr wgl_get_proc_address;
+
+static int open_libgl(void)
+{
+    libgl = LoadLibraryA("opengl32.dll");
+    if (!libgl)
+        return GL3W_ERROR_LIBRARY_OPEN;
+    wgl_get_proc_address = (GL3WglGetProcAddr)GetProcAddress(libgl, "wglGetProcAddress");
+    return GL3W_OK;
+}
+
+static void close_libgl(void) { FreeLibrary(libgl); libgl = NULL; }
+static GL3WglProc get_proc(const char *proc)
+{
+    GL3WglProc res;
+    res = (GL3WglProc)wgl_get_proc_address(proc);
+    if (!res)
+        res = (GL3WglProc)GetProcAddress(libgl, proc);
+    return res;
+}
+#elif defined(__APPLE__)
+#include <dlfcn.h>
+
+static void *libgl = NULL;
+static int open_libgl(void)
+{
+    libgl = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_LOCAL);
+    if (!libgl)
+        return GL3W_ERROR_LIBRARY_OPEN;
+    return GL3W_OK;
+}
+
+static void close_libgl(void) { dlclose(libgl); libgl = NULL; }
+
+static GL3WglProc get_proc(const char *proc)
+{
+    GL3WglProc res;
+    *(void **)(&res) = dlsym(libgl, proc);
+    return res;
+}
+#else
+#include <dlfcn.h>
+
+static void* libgl;  // OpenGL library
+static void* libglx;  // GLX library
+static void* libegl;  // EGL library
+static GL3WGetProcAddressProc gl_get_proc_address;
+
+static void close_libgl(void)
+{
+    if (libgl) {
+        dlclose(libgl);
+        libgl = NULL;
+    }
+    if (libegl) {
+        dlclose(libegl);
+        libegl = NULL;
+    }
+    if (libglx) {
+        dlclose(libglx);
+        libglx = NULL;
+    }
+}
+
+static int is_library_loaded(const char* name, void** lib)
+{
+#if defined(__HAIKU__)
+    *lib = NULL; // no support for RTLD_NOLOAD on Haiku.
+#else
+    *lib = dlopen(name, RTLD_LAZY | RTLD_LOCAL | RTLD_NOLOAD);
+#endif
+    return *lib != NULL;
+}
+
+static int open_libs(void)
+{
+    // On Linux we have two APIs to get process addresses: EGL and GLX.
+    // EGL is supported under both X11 and Wayland, whereas GLX is X11-specific.
+
+    libgl = NULL;
+    libegl = NULL;
+    libglx = NULL;
+
+    // First check what's already loaded, the windowing library might have
+    // already loaded either EGL or GLX and we want to use the same one.
+
+    if (is_library_loaded("libEGL.so.1", &libegl) ||
+        is_library_loaded("libGLX.so.0", &libglx)) {
+        libgl = dlopen("libOpenGL.so.0", RTLD_LAZY | RTLD_LOCAL);
+        if (libgl)
+            return GL3W_OK;
+        else
+            close_libgl();
+    }
+
+    if (is_library_loaded("libGL.so", &libgl))
+        return GL3W_OK;
+    if (is_library_loaded("libGL.so.1", &libgl))
+        return GL3W_OK;
+    if (is_library_loaded("libGL.so.3", &libgl))
+        return GL3W_OK;
+
+    // Neither is already loaded, so we have to load one.  Try EGL first
+    // because it is supported under both X11 and Wayland.
+
+    // Load OpenGL + EGL
+    libgl = dlopen("libOpenGL.so.0", RTLD_LAZY | RTLD_LOCAL);
+    libegl = dlopen("libEGL.so.1", RTLD_LAZY | RTLD_LOCAL);
+    if (libgl && libegl)
+        return GL3W_OK;
+    else
+        close_libgl();
+
+    // Fall back to legacy libGL, which includes GLX
+    // While most systems use libGL.so.1, NetBSD seems to use that libGL.so.3. See https://github.com/ocornut/imgui/issues/6983
+    libgl = dlopen("libGL.so", RTLD_LAZY | RTLD_LOCAL);
+    if (!libgl)
+        libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL);
+    if (!libgl)
+        libgl = dlopen("libGL.so.3", RTLD_LAZY | RTLD_LOCAL);
+
+    if (libgl)
+        return GL3W_OK;
+
+    return GL3W_ERROR_LIBRARY_OPEN;
+}
+
+static int open_libgl(void)
+{
+    int res = open_libs();
+    if (res)
+        return res;
+
+    if (libegl)
+        *(void**)(&gl_get_proc_address) = dlsym(libegl, "eglGetProcAddress");
+    else if (libglx)
+        *(void**)(&gl_get_proc_address) = dlsym(libglx, "glXGetProcAddressARB");
+    else
+        *(void**)(&gl_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");
+
+    if (!gl_get_proc_address) {
+        close_libgl();
+        return GL3W_ERROR_LIBRARY_OPEN;
+    }
+
+    return GL3W_OK;
+}
+
+static GL3WglProc get_proc(const char* proc)
+{
+    GL3WglProc res = NULL;
+
+    // Before EGL version 1.5, eglGetProcAddress doesn't support querying core
+    // functions and may return a dummy function if we try, so try to load the
+    // function from the GL library directly first.
+    if (libegl)
+        *(void**)(&res) = dlsym(libgl, proc);
+
+    if (!res)
+        res = gl_get_proc_address(proc);
+
+    if (!libegl && !res)
+        *(void**)(&res) = dlsym(libgl, proc);
+
+    return res;
+}
+#endif
+
+static struct { int major, minor; } version;
+
+static int parse_version(void)
+{
+    if (!glGetIntegerv)
+        return GL3W_ERROR_INIT;
+    glGetIntegerv(GL_MAJOR_VERSION, &version.major);
+    glGetIntegerv(GL_MINOR_VERSION, &version.minor);
+    if (version.major == 0 && version.minor == 0)
+    {
+        // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
+        if (const char* gl_version = (const char*)glGetString(GL_VERSION))
+            sscanf(gl_version, "%d.%d", &version.major, &version.minor);
+    }
+    if (version.major < 2)
+        return GL3W_ERROR_OPENGL_VERSION;
+    return GL3W_OK;
+}
+
+static void load_procs(GL3WGetProcAddressProc proc);
+static void clear_procs();
+
+int imgl3wInit(void)
+{
+    int res = open_libgl();
+    if (res)
+        return res;
+    atexit(close_libgl);
+    return imgl3wInit2(get_proc);
+}
+
+int imgl3wInit2(GL3WGetProcAddressProc proc)
+{
+    load_procs(proc);
+    return parse_version();
+}
+
+void imgl3wShutdown(void)
+{
+    close_libgl();
+    clear_procs();
+}
+
+int imgl3wIsSupported(int major, int minor)
+{
+    if (major < 2)
+        return 0;
+    if (version.major == major)
+        return version.minor >= minor;
+    return version.major >= major;
+}
+
+GL3WglProc imgl3wGetProcAddress(const char *proc) { return get_proc(proc); }
+
+static const char *proc_names[] = {
+    "glActiveTexture",
+    "glAttachShader",
+    "glBindBuffer",
+    "glBindSampler",
+    "glBindTexture",
+    "glBindVertexArray",
+    "glBlendEquation",
+    "glBlendEquationSeparate",
+    "glBlendFuncSeparate",
+    "glBufferData",
+    "glBufferSubData",
+    "glClear",
+    "glClearColor",
+    "glCompileShader",
+    "glCreateProgram",
+    "glCreateShader",
+    "glDeleteBuffers",
+    "glDeleteProgram",
+    "glDeleteSamplers",
+    "glDeleteShader",
+    "glDeleteTextures",
+    "glDeleteVertexArrays",
+    "glDetachShader",
+    "glDisable",
+    "glDisableVertexAttribArray",
+    "glDrawElements",
+    "glDrawElementsBaseVertex",
+    "glEnable",
+    "glEnableVertexAttribArray",
+    "glFlush",
+    "glGenBuffers",
+    "glGenSamplers",
+    "glGenTextures",
+    "glGenVertexArrays",
+    "glGetAttribLocation",
+    "glGetError",
+    "glGetIntegerv",
+    "glGetProgramInfoLog",
+    "glGetProgramiv",
+    "glGetShaderInfoLog",
+    "glGetShaderiv",
+    "glGetString",
+    "glGetStringi",
+    "glGetUniformLocation",
+    "glGetVertexAttribPointerv",
+    "glGetVertexAttribiv",
+    "glIsEnabled",
+    "glIsProgram",
+    "glLinkProgram",
+    "glPixelStorei",
+    "glPolygonMode",
+    "glReadPixels",
+    "glSamplerParameteri",
+    "glScissor",
+    "glShaderSource",
+    "glTexImage2D",
+    "glTexParameteri",
+    "glTexSubImage2D",
+    "glUniform1i",
+    "glUniformMatrix4fv",
+    "glUseProgram",
+    "glVertexAttribPointer",
+    "glViewport",
+};
+
+GL3W_API union ImGL3WProcs imgl3wProcs;
+
+static void load_procs(GL3WGetProcAddressProc proc)
+{
+    size_t i;
+    for (i = 0; i < GL3W_ARRAY_SIZE(proc_names); i++)
+        imgl3wProcs.ptr[i] = proc(proc_names[i]);
+}
+
+static void clear_procs()
+{
+    size_t i;
+    for (i = 0; i < GL3W_ARRAY_SIZE(proc_names); i++)
+        imgl3wProcs.ptr[i] = nullptr;
+}
+
+#ifdef __cplusplus
+}
+#endif
+#endif
diff --git a/tools/eeprom_editor/main.cc b/tools/eeprom_editor/main.cc
new file mode 100644
index 00000000..1c606740
--- /dev/null
+++ b/tools/eeprom_editor/main.cc
@@ -0,0 +1,105 @@
+#include <cstdio>
+
+#define GL_SILENCE_DEPRECATION
+#include <GLFW/glfw3.h>
+
+#include "imgui.h"
+#include "imgui_impl_glfw.h"
+#include "imgui_impl_opengl3.h"
+
+#include "App.h"
+
+static void glfw_error_callback(int error, char const* description)
+{
+    std::fprintf(stderr, "GLFW Error %d: %s\n", error, description);
+}
+
+int main(int, char**)
+{
+    glfwSetErrorCallback(glfw_error_callback);
+    if (not glfwInit())
+    {
+        return 1;
+    }
+
+#if defined(__APPLE__)
+    char const* glsl_version = "#version 150";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
+    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
+#else
+    char const* glsl_version = "#version 130";
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+#endif
+
+    GLFWwindow* window = glfwCreateWindow(1280, 800, "KickCAT EEPROM Editor", nullptr, nullptr);
+    if (window == nullptr)
+    {
+        return 1;
+    }
+    glfwMakeContextCurrent(window);
+    glfwSwapInterval(1);
+
+    IMGUI_CHECKVERSION();
+    ImGui::CreateContext();
+
+    ImGuiIO& io = ImGui::GetIO();
+    io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
+
+    ImGui::StyleColorsDark();
+
+    ImGui_ImplGlfw_InitForOpenGL(window, true);
+    ImGui_ImplOpenGL3_Init(glsl_version);
+
+    kickcat::eeprom_editor::App app;
+    ImVec4 clear_color{0.10f, 0.10f, 0.14f, 1.00f};
+
+    while (not glfwWindowShouldClose(window))
+    {
+        glfwPollEvents();
+
+        if (glfwGetWindowAttrib(window, GLFW_ICONIFIED) != 0)
+        {
+            glfwWaitEventsTimeout(0.1);
+            continue;
+        }
+
+        ImGui_ImplOpenGL3_NewFrame();
+        ImGui_ImplGlfw_NewFrame();
+        ImGui::NewFrame();
+
+        auto const* viewport = ImGui::GetMainViewport();
+        ImGui::SetNextWindowPos(viewport->WorkPos);
+        ImGui::SetNextWindowSize(viewport->WorkSize);
+
+        ImGui::Begin("##MainWindow", nullptr,
+                     ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize |
+                     ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoCollapse |
+                     ImGuiWindowFlags_MenuBar | ImGuiWindowFlags_NoBringToFrontOnFocus);
+
+        app.render();
+
+        ImGui::End();
+
+        ImGui::Render();
+        int display_w, display_h;
+        glfwGetFramebufferSize(window, &display_w, &display_h);
+        glViewport(0, 0, display_w, display_h);
+        glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
+        glClear(GL_COLOR_BUFFER_BIT);
+        ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
+
+        glfwSwapBuffers(window);
+    }
+
+    ImGui_ImplOpenGL3_Shutdown();
+    ImGui_ImplGlfw_Shutdown();
+    ImGui::DestroyContext();
+
+    glfwDestroyWindow(window);
+    glfwTerminate();
+
+    return 0;
+}
diff --git a/tools/eeprom_editor/vendor/imgui_memory_editor.h b/tools/eeprom_editor/vendor/imgui_memory_editor.h
new file mode 100644
index 00000000..ebe491b7
--- /dev/null
+++ b/tools/eeprom_editor/vendor/imgui_memory_editor.h
@@ -0,0 +1,836 @@
+// Mini memory editor for Dear ImGui (to embed in your game/tools)
+// Get latest version at http://www.github.com/ocornut/imgui_club
+// Licensed under The MIT License (MIT)
+
+// Right-click anywhere to access the Options menu!
+// You can adjust the keyboard repeat delay/rate in ImGuiIO.
+// The code assume a mono-space font for simplicity!
+// If you don't use the default font, use ImGui::PushFont()/PopFont() to switch to a mono-space font before calling this.
+//
+// Usage:
+//   // Create a window and draw memory editor inside it:
+//   static MemoryEditor mem_edit_1;
+//   static char data[0x10000];
+//   size_t data_size = 0x10000;
+//   mem_edit_1.DrawWindow("Memory Editor", data, data_size);
+//
+// Usage:
+//   // If you already have a window, use DrawContents() instead:
+//   static MemoryEditor mem_edit_2;
+//   ImGui::Begin("MyWindow")
+//   mem_edit_2.DrawContents(this, sizeof(*this), (size_t)this);
+//   ImGui::End();
+//
+// Changelog:
+// - v0.10: initial version
+// - v0.23 (2017/08/17): added to github. fixed right-arrow triggering a byte write.
+// - v0.24 (2018/06/02): changed DragInt("Rows" to use a %d data format (which is desirable since imgui 1.61).
+// - v0.25 (2018/07/11): fixed wording: all occurrences of "Rows" renamed to "Columns".
+// - v0.26 (2018/08/02): fixed clicking on hex region
+// - v0.30 (2018/08/02): added data preview for common data types
+// - v0.31 (2018/10/10): added OptUpperCaseHex option to select lower/upper casing display [@samhocevar]
+// - v0.32 (2018/10/10): changed signatures to use void* instead of unsigned char*
+// - v0.33 (2018/10/10): added OptShowOptions option to hide all the interactive option setting.
+// - v0.34 (2019/05/07): binary preview now applies endianness setting [@nicolasnoble]
+// - v0.35 (2020/01/29): using ImGuiDataType available since Dear ImGui 1.69.
+// - v0.36 (2020/05/05): minor tweaks, minor refactor.
+// - v0.40 (2020/10/04): fix misuse of ImGuiListClipper API, broke with Dear ImGui 1.79. made cursor position appears on left-side of edit box. option popup appears on mouse release. fix MSVC warnings where _CRT_SECURE_NO_WARNINGS wasn't working in recent versions.
+// - v0.41 (2020/10/05): fix when using with keyboard/gamepad navigation enabled.
+// - v0.42 (2020/10/14): fix for . character in ASCII view always being greyed out.
+// - v0.43 (2021/03/12): added OptFooterExtraHeight to allow for custom drawing at the bottom of the editor [@leiradel]
+// - v0.44 (2021/03/12): use ImGuiInputTextFlags_AlwaysOverwrite in 1.82 + fix hardcoded width.
+// - v0.50 (2021/11/12): various fixes for recent dear imgui versions (fixed misuse of clipper, relying on SetKeyboardFocusHere() handling scrolling from 1.85). added default size.
+// - v0.51 (2024/02/22): fix for layout change in 1.89 when using IMGUI_DISABLE_OBSOLETE_FUNCTIONS. (#34)
+// - v0.52 (2024/03/08): removed unnecessary GetKeyIndex() calls, they are a no-op since 1.87.
+// - v0.53 (2024/05/27): fixed right-click popup from not appearing when using DrawContents(). warning fixes. (#35)
+// - v0.54 (2024/07/29): allow ReadOnly mode to still select and preview data. (#46) [@DeltaGW2])
+// - v0.55 (2024/08/19): added BgColorFn to allow setting background colors independently from highlighted selection. (#27) [@StrikerX3]
+//                       added MouseHoveredAddr public readable field. (#47, #27) [@StrikerX3]
+//                       fixed a data preview crash with 1.91.0 WIP. fixed contiguous highlight color when using data preview.
+//                       *BREAKING* added UserData field passed to all optional function handlers: ReadFn, WriteFn, HighlightFn, BgColorFn. (#50) [@silverweed]
+// - v0.56 (2024/11/04): fixed MouseHovered, MouseHoveredAddr not being set when hovering a byte being edited. (#54)
+// - v0.57 (2025/03/26): fixed warnings. using ImGui's ImSXX/ImUXX types instead of e.g. int32_t/uint32_t. (#56)
+// - v0.58 (2025/03/31): fixed extraneous footer spacing (added in 0.51) breaking vertical auto-resize. (#53)
+// - v0.59 (2025/04/08): fixed GotoAddrAndHighlight() not working if OptShowOptions is disabled.
+//
+// TODO:
+// - This is generally old/crappy code, it should work but isn't very good.. to be rewritten some day.
+// - PageUp/PageDown are not supported because we use _NoNav. This is a good test scenario for working out idioms of how to mix natural nav and our own...
+// - Arrows are being sent to the InputText() about to disappear which for LeftArrow makes the text cursor appear at position 1 for one frame.
+// - Using InputText() is awkward and maybe overkill here, consider implementing something custom.
+
+#pragma once
+
+#include <stdio.h>      // sprintf, scanf
+#include <stdint.h>     // uint8_t, etc.
+
+#if defined(_MSC_VER) && !defined(snprintf)
+#define ImSnprintf  _snprintf
+#else
+#define ImSnprintf  snprintf
+#endif
+#if defined(_MSC_VER) && !defined(__clang__)
+#define _PRISizeT   "I"
+#else
+#define _PRISizeT   "z"
+#endif
+
+#if defined(_MSC_VER) || defined(_UCRT)
+#pragma warning (push)
+#pragma warning (disable: 4996) // warning C4996: 'sprintf': This function or variable may be unsafe.
+#endif
+
+struct MemoryEditor
+{
+    enum DataFormat
+    {
+        DataFormat_Bin = 0,
+        DataFormat_Dec = 1,
+        DataFormat_Hex = 2,
+        DataFormat_COUNT
+    };
+
+    // Settings
+    bool            Open;                                       // = true   // set to false when DrawWindow() was closed. ignore if not using DrawWindow().
+    bool            ReadOnly;                                   // = false  // disable any editing.
+    int             Cols;                                       // = 16     // number of columns to display.
+    bool            OptShowOptions;                             // = true   // display options button/context menu. when disabled, options will be locked unless you provide your own UI for them.
+    bool            OptShowDataPreview;                         // = false  // display a footer previewing the decimal/binary/hex/float representation of the currently selected bytes.
+    bool            OptShowHexII;                               // = false  // display values in HexII representation instead of regular hexadecimal: hide null/zero bytes, ascii values as ".X".
+    bool            OptShowAscii;                               // = true   // display ASCII representation on the right side.
+    bool            OptGreyOutZeroes;                           // = true   // display null/zero bytes using the TextDisabled color.
+    bool            OptUpperCaseHex;                            // = true   // display hexadecimal values as "FF" instead of "ff".
+    int             OptMidColsCount;                            // = 8      // set to 0 to disable extra spacing between every mid-cols.
+    int             OptAddrDigitsCount;                         // = 0      // number of addr digits to display (default calculated based on maximum displayed addr).
+    float           OptFooterExtraHeight;                       // = 0      // space to reserve at the bottom of the widget to add custom widgets
+    ImU32           HighlightColor;                             //          // background color of highlighted bytes.
+
+    // Function handlers
+    ImU8            (*ReadFn)(const ImU8* mem, size_t off, void* user_data);      // = 0      // optional handler to read bytes.
+    void            (*WriteFn)(ImU8* mem, size_t off, ImU8 d, void* user_data);   // = 0      // optional handler to write bytes.
+    bool            (*HighlightFn)(const ImU8* mem, size_t off, void* user_data); // = 0      // optional handler to return Highlight property (to support non-contiguous highlighting).
+    ImU32           (*BgColorFn)(const ImU8* mem, size_t off, void* user_data);   // = 0      // optional handler to return custom background color of individual bytes.
+    void*           UserData;                                                     // = NULL   // user data forwarded to the function handlers
+
+    // Public read-only data
+    bool            MouseHovered;                               // set when mouse is hovering a value.
+    size_t          MouseHoveredAddr;                           // the address currently being hovered if MouseHovered is set.
+
+    // [Internal State]
+    bool            ContentsWidthChanged;
+    size_t          DataPreviewAddr;
+    size_t          DataEditingAddr;
+    bool            DataEditingTakeFocus;
+    char            DataInputBuf[32];
+    char            AddrInputBuf[32];
+    size_t          GotoAddr;
+    size_t          HighlightMin, HighlightMax;
+    int             PreviewEndianness;
+    ImGuiDataType   PreviewDataType;
+
+    MemoryEditor()
+    {
+        // Settings
+        Open = true;
+        ReadOnly = false;
+        Cols = 16;
+        OptShowOptions = true;
+        OptShowDataPreview = false;
+        OptShowHexII = false;
+        OptShowAscii = true;
+        OptGreyOutZeroes = true;
+        OptUpperCaseHex = true;
+        OptMidColsCount = 8;
+        OptAddrDigitsCount = 0;
+        OptFooterExtraHeight = 0.0f;
+        HighlightColor = IM_COL32(255, 255, 255, 50);
+        ReadFn = nullptr;
+        WriteFn = nullptr;
+        HighlightFn = nullptr;
+        BgColorFn = nullptr;
+        UserData = nullptr;
+
+        // State/Internals
+        ContentsWidthChanged = false;
+        DataPreviewAddr = DataEditingAddr = (size_t)-1;
+        DataEditingTakeFocus = false;
+        memset(DataInputBuf, 0, sizeof(DataInputBuf));
+        memset(AddrInputBuf, 0, sizeof(AddrInputBuf));
+        GotoAddr = (size_t)-1;
+        MouseHovered = false;
+        MouseHoveredAddr = 0;
+        HighlightMin = HighlightMax = (size_t)-1;
+        PreviewEndianness = 0;
+        PreviewDataType = ImGuiDataType_S32;
+    }
+
+    void GotoAddrAndHighlight(size_t addr_min, size_t addr_max)
+    {
+        GotoAddr = addr_min;
+        HighlightMin = addr_min;
+        HighlightMax = addr_max;
+    }
+
+    struct Sizes
+    {
+        int     AddrDigitsCount;            // Number of digits required to represent maximum address.
+        float   LineHeight;                 // Height of each line (no spacing).
+        float   GlyphWidth;                 // Glyph width (assume mono-space).
+        float   HexCellWidth;               // Width of a hex edit cell ~2.5f * GlypHWidth.
+        float   SpacingBetweenMidCols;      // Spacing between each columns section (OptMidColsCount).
+        float   OffsetHexMinX;
+        float   OffsetHexMaxX;
+        float   OffsetAsciiMinX;
+        float   OffsetAsciiMaxX;
+        float   WindowWidth;                // Ideal window width.
+
+        Sizes() { memset(this, 0, sizeof(*this)); }
+    };
+
+    void CalcSizes(Sizes& s, size_t mem_size, size_t base_display_addr)
+    {
+        ImGuiStyle& style = ImGui::GetStyle();
+        s.AddrDigitsCount = OptAddrDigitsCount;
+        if (s.AddrDigitsCount == 0)
+            for (size_t n = base_display_addr + mem_size - 1; n > 0; n >>= 4)
+                s.AddrDigitsCount++;
+        s.LineHeight = ImGui::GetTextLineHeight();
+        s.GlyphWidth = ImGui::CalcTextSize("F").x + 1;                  // We assume the font is mono-space
+        s.HexCellWidth = (float)(int)(s.GlyphWidth * 2.5f);             // "FF " we include trailing space in the width to easily catch clicks everywhere
+        s.SpacingBetweenMidCols = (float)(int)(s.HexCellWidth * 0.25f); // Every OptMidColsCount columns we add a bit of extra spacing
+        s.OffsetHexMinX = (s.AddrDigitsCount + 2) * s.GlyphWidth;
+        s.OffsetHexMaxX = s.OffsetHexMinX + (s.HexCellWidth * Cols);
+        s.OffsetAsciiMinX = s.OffsetAsciiMaxX = s.OffsetHexMaxX;
+        if (OptShowAscii)
+        {
+            s.OffsetAsciiMinX = s.OffsetHexMaxX + s.GlyphWidth * 1;
+            if (OptMidColsCount > 0)
+                s.OffsetAsciiMinX += (float)((Cols + OptMidColsCount - 1) / OptMidColsCount) * s.SpacingBetweenMidCols;
+            s.OffsetAsciiMaxX = s.OffsetAsciiMinX + Cols * s.GlyphWidth;
+        }
+        s.WindowWidth = s.OffsetAsciiMaxX + style.ScrollbarSize + style.WindowPadding.x * 2 + s.GlyphWidth;
+    }
+
+    // Standalone Memory Editor window
+    void DrawWindow(const char* title, void* mem_data, size_t mem_size, size_t base_display_addr = 0x0000)
+    {
+        Sizes s;
+        CalcSizes(s, mem_size, base_display_addr);
+        ImGui::SetNextWindowSize(ImVec2(s.WindowWidth, s.WindowWidth * 0.60f), ImGuiCond_FirstUseEver);
+        ImGui::SetNextWindowSizeConstraints(ImVec2(0.0f, 0.0f), ImVec2(s.WindowWidth, FLT_MAX));
+
+        Open = true;
+        if (ImGui::Begin(title, &Open, ImGuiWindowFlags_NoScrollbar))
+        {
+            DrawContents(mem_data, mem_size, base_display_addr);
+            if (ContentsWidthChanged)
+            {
+                CalcSizes(s, mem_size, base_display_addr);
+                ImGui::SetWindowSize(ImVec2(s.WindowWidth, ImGui::GetWindowSize().y));
+            }
+        }
+        ImGui::End();
+    }
+
+    // Memory Editor contents only
+    void DrawContents(void* mem_data_void, size_t mem_size, size_t base_display_addr = 0x0000)
+    {
+        if (Cols < 1)
+            Cols = 1;
+
+        ImU8* mem_data = (ImU8*)mem_data_void;
+        Sizes s;
+        CalcSizes(s, mem_size, base_display_addr);
+        ImGuiStyle& style = ImGui::GetStyle();
+
+        const ImVec2 contents_pos_start = ImGui::GetCursorScreenPos();
+
+        // We begin into our scrolling region with the 'ImGuiWindowFlags_NoMove' in order to prevent click from moving the window.
+        // This is used as a facility since our main click detection code doesn't assign an ActiveId so the click would normally be caught as a window-move.
+        const float height_separator = style.ItemSpacing.y;
+        float footer_height = OptFooterExtraHeight;
+        if (OptShowOptions)
+            footer_height += height_separator + ImGui::GetFrameHeightWithSpacing() * 1;
+        if (OptShowDataPreview)
+            footer_height += height_separator + ImGui::GetFrameHeightWithSpacing() * 1 + ImGui::GetTextLineHeightWithSpacing() * 3;
+        ImGui::BeginChild("##scrolling", ImVec2(-FLT_MIN, -footer_height), ImGuiChildFlags_None, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoNav);
+        ImDrawList* draw_list = ImGui::GetWindowDrawList();
+
+        ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
+        ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
+
+        // We are not really using the clipper API correctly here, because we rely on visible_start_addr/visible_end_addr for our scrolling function.
+        const ImVec2 avail_size = ImGui::GetContentRegionAvail();
+        const int line_total_count = (int)((mem_size + Cols - 1) / Cols);
+        ImGuiListClipper clipper;
+        clipper.Begin(line_total_count, s.LineHeight);
+
+        bool data_next = false;
+
+        if (DataEditingAddr >= mem_size)
+            DataEditingAddr = (size_t)-1;
+        if (DataPreviewAddr >= mem_size)
+            DataPreviewAddr = (size_t)-1;
+
+        size_t preview_data_type_size = OptShowDataPreview ? DataTypeGetSize(PreviewDataType) : 0;
+
+        size_t data_editing_addr_next = (size_t)-1;
+        if (DataEditingAddr != (size_t)-1)
+        {
+            // Move cursor but only apply on next frame so scrolling with be synchronized (because currently we can't change the scrolling while the window is being rendered)
+            if (ImGui::IsKeyPressed(ImGuiKey_UpArrow) && (ptrdiff_t)DataEditingAddr >= (ptrdiff_t)Cols)                 { data_editing_addr_next = DataEditingAddr - Cols; }
+            else if (ImGui::IsKeyPressed(ImGuiKey_DownArrow) && (ptrdiff_t)DataEditingAddr < (ptrdiff_t)mem_size - Cols){ data_editing_addr_next = DataEditingAddr + Cols; }
+            else if (ImGui::IsKeyPressed(ImGuiKey_LeftArrow) && (ptrdiff_t)DataEditingAddr > (ptrdiff_t)0)              { data_editing_addr_next = DataEditingAddr - 1; }
+            else if (ImGui::IsKeyPressed(ImGuiKey_RightArrow) && (ptrdiff_t)DataEditingAddr < (ptrdiff_t)mem_size - 1)  { data_editing_addr_next = DataEditingAddr + 1; }
+        }
+
+        // Draw vertical separator
+        ImVec2 window_pos = ImGui::GetWindowPos();
+        if (OptShowAscii)
+            draw_list->AddLine(ImVec2(window_pos.x + s.OffsetAsciiMinX - s.GlyphWidth, window_pos.y), ImVec2(window_pos.x + s.OffsetAsciiMinX - s.GlyphWidth, window_pos.y + 9999), ImGui::GetColorU32(ImGuiCol_Border));
+
+        const ImU32 color_text = ImGui::GetColorU32(ImGuiCol_Text);
+        const ImU32 color_disabled = OptGreyOutZeroes ? ImGui::GetColorU32(ImGuiCol_TextDisabled) : color_text;
+
+        const char* format_address = OptUpperCaseHex ? "%0*" _PRISizeT "X: " : "%0*" _PRISizeT "x: ";
+        const char* format_data = OptUpperCaseHex ? "%0*" _PRISizeT "X" : "%0*" _PRISizeT "x";
+        const char* format_byte = OptUpperCaseHex ? "%02X" : "%02x";
+        const char* format_byte_space = OptUpperCaseHex ? "%02X " : "%02x ";
+
+        MouseHovered = false;
+        MouseHoveredAddr = 0;
+
+        while (clipper.Step())
+            for (int line_i = clipper.DisplayStart; line_i < clipper.DisplayEnd; line_i++) // display only visible lines
+            {
+                size_t addr = (size_t)line_i * Cols;
+                ImGui::Text(format_address, s.AddrDigitsCount, base_display_addr + addr);
+
+                // Draw Hexadecimal
+                for (int n = 0; n < Cols && addr < mem_size; n++, addr++)
+                {
+                    float byte_pos_x = s.OffsetHexMinX + s.HexCellWidth * n;
+                    if (OptMidColsCount > 0)
+                        byte_pos_x += (float)(n / OptMidColsCount) * s.SpacingBetweenMidCols;
+                    ImGui::SameLine(byte_pos_x);
+
+                    // Draw highlight or custom background color
+                    const bool is_highlight_from_user_range = (addr >= HighlightMin && addr < HighlightMax);
+                    const bool is_highlight_from_user_func = (HighlightFn && HighlightFn(mem_data, addr, UserData));
+                    const bool is_highlight_from_preview = (addr >= DataPreviewAddr && addr < DataPreviewAddr + preview_data_type_size);
+
+                    ImU32 bg_color = 0;
+                    bool is_next_byte_highlighted = false;
+                    if (is_highlight_from_user_range || is_highlight_from_user_func || is_highlight_from_preview)
+                    {
+                        is_next_byte_highlighted = (addr + 1 < mem_size) && ((HighlightMax != (size_t)-1 && addr + 1 < HighlightMax) || (HighlightFn && HighlightFn(mem_data, addr + 1, UserData)) || (addr + 1 < DataPreviewAddr + preview_data_type_size));
+                        bg_color = HighlightColor;
+                    }
+                    else if (BgColorFn != nullptr)
+                    {
+                        is_next_byte_highlighted = (addr + 1 < mem_size) && ((BgColorFn(mem_data, addr + 1, UserData) & IM_COL32_A_MASK) != 0);
+                        bg_color = BgColorFn(mem_data, addr, UserData);
+                    }
+                    if (bg_color != 0)
+                    {
+                        float bg_width = s.GlyphWidth * 2;
+                        if (is_next_byte_highlighted || (n + 1 == Cols))
+                        {
+                            bg_width = s.HexCellWidth;
+                            if (OptMidColsCount > 0 && n > 0 && (n + 1) < Cols && ((n + 1) % OptMidColsCount) == 0)
+                                bg_width += s.SpacingBetweenMidCols;
+                        }
+                        ImVec2 pos = ImGui::GetCursorScreenPos();
+                        draw_list->AddRectFilled(pos, ImVec2(pos.x + bg_width, pos.y + s.LineHeight), bg_color);
+                    }
+
+                    if (DataEditingAddr == addr)
+                    {
+                        // Display text input on current byte
+                        bool data_write = false;
+                        ImGui::PushID((void*)addr);
+                        if (DataEditingTakeFocus)
+                        {
+                            ImGui::SetKeyboardFocusHere(0);
+                            ImSnprintf(AddrInputBuf, 32, format_data, s.AddrDigitsCount, base_display_addr + addr);
+                            ImSnprintf(DataInputBuf, 32, format_byte, ReadFn ? ReadFn(mem_data, addr, UserData) : mem_data[addr]);
+                        }
+                        struct InputTextUserData
+                        {
+                            // FIXME: We should have a way to retrieve the text edit cursor position more easily in the API, this is rather tedious. This is such a ugly mess we may be better off not using InputText() at all here.
+                            static int Callback(ImGuiInputTextCallbackData* data)
+                            {
+                                InputTextUserData* user_data = (InputTextUserData*)data->UserData;
+                                if (!data->HasSelection())
+                                    user_data->CursorPos = data->CursorPos;
+#if IMGUI_VERSION_NUM < 19102
+                                if (data->Flags & ImGuiInputTextFlags_ReadOnly)
+                                    return 0;
+#endif
+                                if (data->SelectionStart == 0 && data->SelectionEnd == data->BufTextLen)
+                                {
+                                    // When not editing a byte, always refresh its InputText content pulled from underlying memory data
+                                    // (this is a bit tricky, since InputText technically "owns" the master copy of the buffer we edit it in there)
+                                    data->DeleteChars(0, data->BufTextLen);
+                                    data->InsertChars(0, user_data->CurrentBufOverwrite);
+                                    data->SelectionStart = 0;
+                                    data->SelectionEnd = 2;
+                                    data->CursorPos = 0;
+                                }
+                                return 0;
+                            }
+                            char   CurrentBufOverwrite[3];  // Input
+                            int    CursorPos;               // Output
+                        };
+                        InputTextUserData input_text_user_data;
+                        input_text_user_data.CursorPos = -1;
+                        ImSnprintf(input_text_user_data.CurrentBufOverwrite, 3, format_byte, ReadFn ? ReadFn(mem_data, addr, UserData) : mem_data[addr]);
+                        ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoHorizontalScroll | ImGuiInputTextFlags_CallbackAlways;
+                        if (ReadOnly)
+                            flags |= ImGuiInputTextFlags_ReadOnly;
+                        flags |= ImGuiInputTextFlags_AlwaysOverwrite; // was ImGuiInputTextFlags_AlwaysInsertMode
+                        ImGui::SetNextItemWidth(s.GlyphWidth * 2);
+                        if (ImGui::InputText("##data", DataInputBuf, IM_ARRAYSIZE(DataInputBuf), flags, InputTextUserData::Callback, &input_text_user_data))
+                            data_write = data_next = true;
+                        else if (!DataEditingTakeFocus && !ImGui::IsItemActive())
+                            DataEditingAddr = data_editing_addr_next = (size_t)-1;
+                        DataEditingTakeFocus = false;
+                        if (input_text_user_data.CursorPos >= 2)
+                            data_write = data_next = true;
+                        if (data_editing_addr_next != (size_t)-1)
+                            data_write = data_next = false;
+                        unsigned int data_input_value = 0;
+                        if (!ReadOnly && data_write && sscanf(DataInputBuf, "%X", &data_input_value) == 1)
+                        {
+                            if (WriteFn)
+                                WriteFn(mem_data, addr, (ImU8)data_input_value, UserData);
+                            else
+                                mem_data[addr] = (ImU8)data_input_value;
+                        }
+                        if (ImGui::IsItemHovered())
+                        {
+                            MouseHovered = true;
+                            MouseHoveredAddr = addr;
+                        }
+                        ImGui::PopID();
+                    }
+                    else
+                    {
+                        // NB: The trailing space is not visible but ensure there's no gap that the mouse cannot click on.
+                        ImU8 b = ReadFn ? ReadFn(mem_data, addr, UserData) : mem_data[addr];
+
+                        if (OptShowHexII)
+                        {
+                            if ((b >= 32 && b < 128))
+                                ImGui::Text(".%c ", b);
+                            else if (b == 0xFF && OptGreyOutZeroes)
+                                ImGui::TextDisabled("## ");
+                            else if (b == 0x00)
+                                ImGui::Text("   ");
+                            else
+                                ImGui::Text(format_byte_space, b);
+                        }
+                        else
+                        {
+                            if (b == 0 && OptGreyOutZeroes)
+                                ImGui::TextDisabled("00 ");
+                            else
+                                ImGui::Text(format_byte_space, b);
+                        }
+                        if (ImGui::IsItemHovered())
+                        {
+                            MouseHovered = true;
+                            MouseHoveredAddr = addr;
+                            if (ImGui::IsMouseClicked(0))
+                            {
+                                DataEditingTakeFocus = true;
+                                data_editing_addr_next = addr;
+                            }
+                        }
+                    }
+                }
+
+                if (OptShowAscii)
+                {
+                    // Draw ASCII values
+                    ImGui::SameLine(s.OffsetAsciiMinX);
+                    ImVec2 pos = ImGui::GetCursorScreenPos();
+                    addr = (size_t)line_i * Cols;
+
+                    const float mouse_off_x = ImGui::GetIO().MousePos.x - pos.x;
+                    const size_t mouse_addr = (mouse_off_x >= 0.0f && mouse_off_x < s.OffsetAsciiMaxX - s.OffsetAsciiMinX) ? addr + (size_t)(mouse_off_x / s.GlyphWidth) : (size_t)-1;
+
+                    ImGui::PushID(line_i);
+                    if (ImGui::InvisibleButton("ascii", ImVec2(s.OffsetAsciiMaxX - s.OffsetAsciiMinX, s.LineHeight)))
+                    {
+                        DataEditingAddr = DataPreviewAddr = mouse_addr;
+                        DataEditingTakeFocus = true;
+                    }
+                    if (ImGui::IsItemHovered())
+                    {
+                        MouseHovered = true;
+                        MouseHoveredAddr = mouse_addr;
+                    }
+                    ImGui::PopID();
+                    for (int n = 0; n < Cols && addr < mem_size; n++, addr++)
+                    {
+                        if (addr == DataEditingAddr)
+                        {
+                            draw_list->AddRectFilled(pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight), ImGui::GetColorU32(ImGuiCol_FrameBg));
+                            draw_list->AddRectFilled(pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight), ImGui::GetColorU32(ImGuiCol_TextSelectedBg));
+                        }
+                        else if (BgColorFn)
+                        {
+                            draw_list->AddRectFilled(pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight), BgColorFn(mem_data, addr, UserData));
+                        }
+                        unsigned char c = ReadFn ? ReadFn(mem_data, addr, UserData) : mem_data[addr];
+                        char display_c = (c < 32 || c >= 128) ? '.' : c;
+                        draw_list->AddText(pos, (display_c == c) ? color_text : color_disabled, &display_c, &display_c + 1);
+                        pos.x += s.GlyphWidth;
+                    }
+                }
+            }
+        ImGui::PopStyleVar(2);
+        const float child_width = ImGui::GetWindowSize().x;
+        ImGui::EndChild();
+
+        // Notify the main window of our ideal child content size (FIXME: we are missing an API to get the contents size from the child)
+        ImVec2 backup_pos = ImGui::GetCursorScreenPos();
+        ImGui::SetCursorPosX(s.WindowWidth);
+        ImGui::Dummy(ImVec2(0.0f, 0.0f));
+        ImGui::SetCursorScreenPos(backup_pos);
+
+        if (data_next && DataEditingAddr + 1 < mem_size)
+        {
+            DataEditingAddr = DataPreviewAddr = DataEditingAddr + 1;
+            DataEditingTakeFocus = true;
+        }
+        else if (data_editing_addr_next != (size_t)-1)
+        {
+            DataEditingAddr = DataPreviewAddr = data_editing_addr_next;
+            DataEditingTakeFocus = true;
+        }
+
+        const bool lock_show_data_preview = OptShowDataPreview;
+        if (OptShowOptions)
+        {
+            ImGui::Separator();
+            DrawOptionsLine(s, mem_data, mem_size, base_display_addr);
+        }
+
+        if (lock_show_data_preview)
+        {
+            ImGui::Separator();
+            DrawPreviewLine(s, mem_data, mem_size, base_display_addr);
+        }
+
+        if (GotoAddr != (size_t)-1)
+        {
+            if (GotoAddr < mem_size)
+            {
+                ImGui::BeginChild("##scrolling");
+                ImGui::SetScrollY((GotoAddr / Cols) * ImGui::GetTextLineHeight() - avail_size.y * 0.5f);
+                ImGui::EndChild();
+                DataEditingAddr = DataPreviewAddr = GotoAddr;
+                DataEditingTakeFocus = true;
+            }
+            GotoAddr = (size_t)-1;
+        }
+
+        const ImVec2 contents_pos_end(contents_pos_start.x + child_width, ImGui::GetCursorScreenPos().y);
+        //ImGui::GetForegroundDrawList()->AddRect(contents_pos_start, contents_pos_end, IM_COL32(255, 0, 0, 255));
+        if (OptShowOptions)
+            if (ImGui::IsMouseHoveringRect(contents_pos_start, contents_pos_end))
+                if (ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows) && ImGui::IsMouseReleased(ImGuiMouseButton_Right))
+                    ImGui::OpenPopup("OptionsPopup");
+
+        if (ImGui::BeginPopup("OptionsPopup"))
+        {
+            ImGui::SetNextItemWidth(s.GlyphWidth * 7 + style.FramePadding.x * 2.0f);
+            if (ImGui::DragInt("##cols", &Cols, 0.2f, 4, 32, "%d cols")) { ContentsWidthChanged = true; if (Cols < 1) Cols = 1; }
+            ImGui::Checkbox("Show Data Preview", &OptShowDataPreview);
+            ImGui::Checkbox("Show HexII", &OptShowHexII);
+            if (ImGui::Checkbox("Show Ascii", &OptShowAscii)) { ContentsWidthChanged = true; }
+            ImGui::Checkbox("Grey out zeroes", &OptGreyOutZeroes);
+            ImGui::Checkbox("Uppercase Hex", &OptUpperCaseHex);
+
+            ImGui::EndPopup();
+        }
+    }
+
+    void DrawOptionsLine(const Sizes& s, void* mem_data, size_t mem_size, size_t base_display_addr)
+    {
+        IM_UNUSED(mem_data);
+        ImGuiStyle& style = ImGui::GetStyle();
+        const char* format_range = OptUpperCaseHex ? "Range %0*" _PRISizeT "X..%0*" _PRISizeT "X" : "Range %0*" _PRISizeT "x..%0*" _PRISizeT "x";
+
+        // Options menu
+        if (ImGui::Button("Options"))
+            ImGui::OpenPopup("OptionsPopup");
+
+        ImGui::SameLine();
+        ImGui::Text(format_range, s.AddrDigitsCount, base_display_addr, s.AddrDigitsCount, base_display_addr + mem_size - 1);
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth((s.AddrDigitsCount + 1) * s.GlyphWidth + style.FramePadding.x * 2.0f);
+        if (ImGui::InputText("##addr", AddrInputBuf, IM_ARRAYSIZE(AddrInputBuf), ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_EnterReturnsTrue))
+        {
+            size_t goto_addr;
+            if (sscanf(AddrInputBuf, "%" _PRISizeT "X", &goto_addr) == 1)
+            {
+                GotoAddr = goto_addr - base_display_addr;
+                HighlightMin = HighlightMax = (size_t)-1;
+            }
+        }
+
+        //if (MouseHovered)
+        //{
+        //    ImGui::SameLine();
+        //    ImGui::Text("Hovered: %p", MouseHoveredAddr);
+        //}
+    }
+
+    void DrawPreviewLine(const Sizes& s, void* mem_data_void, size_t mem_size, size_t base_display_addr)
+    {
+        IM_UNUSED(base_display_addr);
+        ImU8* mem_data = (ImU8*)mem_data_void;
+        ImGuiStyle& style = ImGui::GetStyle();
+        ImGui::AlignTextToFramePadding();
+        ImGui::Text("Preview as:");
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth((s.GlyphWidth * 10.0f) + style.FramePadding.x * 2.0f + style.ItemInnerSpacing.x);
+
+        static const ImGuiDataType supported_data_types[] = { ImGuiDataType_S8, ImGuiDataType_U8, ImGuiDataType_S16, ImGuiDataType_U16, ImGuiDataType_S32, ImGuiDataType_U32, ImGuiDataType_S64, ImGuiDataType_U64, ImGuiDataType_Float, ImGuiDataType_Double };
+        if (ImGui::BeginCombo("##combo_type", DataTypeGetDesc(PreviewDataType), ImGuiComboFlags_HeightLargest))
+        {
+            for (int n = 0; n < IM_ARRAYSIZE(supported_data_types); n++)
+            {
+                ImGuiDataType data_type = supported_data_types[n];
+                if (ImGui::Selectable(DataTypeGetDesc(data_type), PreviewDataType == data_type))
+                    PreviewDataType = data_type;
+            }
+            ImGui::EndCombo();
+        }
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth((s.GlyphWidth * 6.0f) + style.FramePadding.x * 2.0f + style.ItemInnerSpacing.x);
+        ImGui::Combo("##combo_endianness", &PreviewEndianness, "LE\0BE\0\0");
+
+        char buf[128] = "";
+        float x = s.GlyphWidth * 6.0f;
+        bool has_value = DataPreviewAddr != (size_t)-1;
+        if (has_value)
+            DrawPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType, DataFormat_Dec, buf, (size_t)IM_ARRAYSIZE(buf));
+        ImGui::Text("Dec"); ImGui::SameLine(x); ImGui::TextUnformatted(has_value ? buf : "N/A");
+        if (has_value)
+            DrawPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType, DataFormat_Hex, buf, (size_t)IM_ARRAYSIZE(buf));
+        ImGui::Text("Hex"); ImGui::SameLine(x); ImGui::TextUnformatted(has_value ? buf : "N/A");
+        if (has_value)
+            DrawPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType, DataFormat_Bin, buf, (size_t)IM_ARRAYSIZE(buf));
+        buf[IM_ARRAYSIZE(buf) - 1] = 0;
+        ImGui::Text("Bin"); ImGui::SameLine(x); ImGui::TextUnformatted(has_value ? buf : "N/A");
+    }
+
+    // Utilities for Data Preview (since we don't access imgui_internal.h)
+    // FIXME: This technically depends on ImGuiDataType order.
+    const char* DataTypeGetDesc(ImGuiDataType data_type) const
+    {
+        const char* descs[] = { "Int8", "Uint8", "Int16", "Uint16", "Int32", "Uint32", "Int64", "Uint64", "Float", "Double" };
+        IM_ASSERT(data_type >= 0 && data_type < IM_ARRAYSIZE(descs));
+        return descs[data_type];
+    }
+
+    size_t DataTypeGetSize(ImGuiDataType data_type) const
+    {
+        const size_t sizes[] = { 1, 1, 2, 2, 4, 4, 8, 8, sizeof(float), sizeof(double) };
+        IM_ASSERT(data_type >= 0 && data_type < IM_ARRAYSIZE(sizes));
+        return sizes[data_type];
+    }
+
+    const char* DataFormatGetDesc(DataFormat data_format) const
+    {
+        const char* descs[] = { "Bin", "Dec", "Hex" };
+        IM_ASSERT(data_format >= 0 && data_format < DataFormat_COUNT);
+        return descs[data_format];
+    }
+
+    bool IsBigEndian() const
+    {
+        ImU16 x = 1;
+        char c[2];
+        memcpy(c, &x, 2);
+        return c[0] != 0;
+    }
+
+    static void* EndiannessCopyBigEndian(void* _dst, void* _src, size_t s, int is_little_endian)
+    {
+        if (is_little_endian)
+        {
+            ImU8* dst = (ImU8*)_dst;
+            ImU8* src = (ImU8*)_src + s - 1;
+            for (int i = 0, n = (int)s; i < n; ++i)
+                memcpy(dst++, src--, 1);
+            return _dst;
+        }
+        else
+        {
+            return memcpy(_dst, _src, s);
+        }
+    }
+
+    static void* EndiannessCopyLittleEndian(void* _dst, void* _src, size_t s, int is_little_endian)
+    {
+        if (is_little_endian)
+        {
+            return memcpy(_dst, _src, s);
+        }
+        else
+        {
+            ImU8* dst = (ImU8*)_dst;
+            ImU8* src = (ImU8*)_src + s - 1;
+            for (int i = 0, n = (int)s; i < n; ++i)
+                memcpy(dst++, src--, 1);
+            return _dst;
+        }
+    }
+
+    void* EndiannessCopy(void* dst, void* src, size_t size) const
+    {
+        static void* (*fp)(void*, void*, size_t, int) = nullptr;
+        if (fp == nullptr)
+            fp = IsBigEndian() ? EndiannessCopyBigEndian : EndiannessCopyLittleEndian;
+        return fp(dst, src, size, PreviewEndianness);
+    }
+
+    const char* FormatBinary(const ImU8* buf, int width) const
+    {
+        IM_ASSERT(width <= 64);
+        size_t out_n = 0;
+        static char out_buf[64 + 8 + 1];
+        int n = width / 8;
+        for (int j = n - 1; j >= 0; --j)
+        {
+            for (int i = 0; i < 8; ++i)
+                out_buf[out_n++] = (buf[j] & (1 << (7 - i))) ? '1' : '0';
+            out_buf[out_n++] = ' ';
+        }
+        IM_ASSERT(out_n < IM_ARRAYSIZE(out_buf));
+        out_buf[out_n] = 0;
+        return out_buf;
+    }
+
+    // [Internal]
+    void DrawPreviewData(size_t addr, const ImU8* mem_data, size_t mem_size, ImGuiDataType data_type, DataFormat data_format, char* out_buf, size_t out_buf_size) const
+    {
+        ImU8 buf[8];
+        size_t elem_size = DataTypeGetSize(data_type);
+        size_t size = addr + elem_size > mem_size ? mem_size - addr : elem_size;
+        if (ReadFn)
+            for (int i = 0, n = (int)size; i < n; ++i)
+                buf[i] = ReadFn(mem_data, addr + i, UserData);
+        else
+            memcpy(buf, mem_data + addr, size);
+
+        if (data_format == DataFormat_Bin)
+        {
+            ImU8 binbuf[8];
+            EndiannessCopy(binbuf, buf, size);
+            ImSnprintf(out_buf, out_buf_size, "%s", FormatBinary(binbuf, (int)size * 8));
+            return;
+        }
+
+        out_buf[0] = 0;
+        switch (data_type)
+        {
+        case ImGuiDataType_S8:
+        {
+            ImS8 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hhd", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%02x", data & 0xFF); return; }
+            break;
+        }
+        case ImGuiDataType_U8:
+        {
+            ImU8 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hhu", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%02x", data & 0XFF); return; }
+            break;
+        }
+        case ImGuiDataType_S16:
+        {
+            ImS16 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hd", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%04x", data & 0xFFFF); return; }
+            break;
+        }
+        case ImGuiDataType_U16:
+        {
+            ImU16 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hu", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%04x", data & 0xFFFF); return; }
+            break;
+        }
+        case ImGuiDataType_S32:
+        {
+            ImS32 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%d", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%08x", data); return; }
+            break;
+        }
+        case ImGuiDataType_U32:
+        {
+            ImU32 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%u", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%08x", data); return; }
+            break;
+        }
+        case ImGuiDataType_S64:
+        {
+            ImS64 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%lld", (long long)data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%016llx", (long long)data); return; }
+            break;
+        }
+        case ImGuiDataType_U64:
+        {
+            ImU64 data = 0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%llu", (long long)data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%016llx", (long long)data); return; }
+            break;
+        }
+        case ImGuiDataType_Float:
+        {
+            float data = 0.0f;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%f", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "%a", data); return; }
+            break;
+        }
+        case ImGuiDataType_Double:
+        {
+            double data = 0.0;
+            EndiannessCopy(&data, buf, size);
+            if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%f", data); return; }
+            if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "%a", data); return; }
+            break;
+        }
+        default:
+        case ImGuiDataType_COUNT:
+            break;
+        } // Switch
+        IM_ASSERT(0); // Shouldn't reach
+    }
+};
+
+#undef _PRISizeT
+#undef ImSnprintf
+
+#ifdef _MSC_VER
+#pragma warning (pop)
+#endif