diff --git a/README.md b/README.md
index 3961881..1111748 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,9 @@
 <!-- SPDX-License-Identifier: LicenseRef-DIFF -->
 
+<p align="center">
+  <img src="https://raw.githubusercontent.com/bniladridas/diff-android/main/docs/assets/icon-transparent.png" alt="DIFF Android icon" width="96" height="96">
+</p>
+
 # DIFF Android
 
 DIFF Android is the mobile app for DIFF, a small pull request workspace for GitHub.
diff --git a/app/src/main/java/com/bniladridas/diff/ui/components/DiffComponents.kt b/app/src/main/java/com/bniladridas/diff/ui/components/DiffComponents.kt
index c46f769..a3f055f 100644
--- a/app/src/main/java/com/bniladridas/diff/ui/components/DiffComponents.kt
+++ b/app/src/main/java/com/bniladridas/diff/ui/components/DiffComponents.kt
@@ -114,7 +114,7 @@ private fun NeutralTag(text: String) {
 fun BrandMark() {
     Row(verticalAlignment = Alignment.CenterVertically) {
         Image(
-            painter = painterResource(R.drawable.coccinella_logo),
+            painter = painterResource(R.drawable.app_icon_foreground),
             contentDescription = null,
             contentScale = ContentScale.Crop,
             modifier = Modifier
diff --git a/app/src/main/res/drawable-nodpi/app_icon_foreground.png b/app/src/main/res/drawable-nodpi/app_icon_foreground.png
new file mode 100644
index 0000000..d8b6844
Binary files /dev/null and b/app/src/main/res/drawable-nodpi/app_icon_foreground.png differ
diff --git a/app/src/main/res/drawable-nodpi/coccinella_logo.png b/app/src/main/res/drawable-nodpi/coccinella_logo.png
deleted file mode 100644
index ce5c0ac..0000000
Binary files a/app/src/main/res/drawable-nodpi/coccinella_logo.png and /dev/null differ
diff --git a/app/src/main/res/drawable/ic_launcher_foreground.xml b/app/src/main/res/drawable/ic_launcher_foreground.xml
index 8ad98fb..d6e3bf8 100644
--- a/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable/ic_launcher_foreground.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <inset xmlns:android="http://schemas.android.com/apk/res/android"
-    android:drawable="@drawable/coccinella_logo"
+    android:drawable="@drawable/app_icon_foreground"
     android:inset="18dp" />
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
index 7dfc771..bb4d4f6 100644
Binary files a/app/src/main/res/mipmap-hdpi/ic_launcher.png and b/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-mdpi/ic_launcher.png b/app/src/main/res/mipmap-mdpi/ic_launcher.png
index 1aabec9..075179b 100644
Binary files a/app/src/main/res/mipmap-mdpi/ic_launcher.png and b/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
index f32fc39..53e2503 100644
Binary files a/app/src/main/res/mipmap-xhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
index 79b5fcc..3eb4d7d 100644
Binary files a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
index 0cf311c..b831f78 100644
Binary files a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/app/src/main/res/values-v31/themes.xml b/app/src/main/res/values-v31/themes.xml
new file mode 100644
index 0000000..2828200
--- /dev/null
+++ b/app/src/main/res/values-v31/themes.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.DIFF" parent="android:style/Theme.Material.NoActionBar">
+        <item name="android:windowBackground">@color/app_launch_background</item>
+        <item name="android:windowSplashScreenBackground">@color/app_launch_background</item>
+        <item name="android:windowSplashScreenAnimatedIcon">@drawable/app_icon_foreground</item>
+        <item name="android:colorAccent">#FFFF4D00</item>
+    </style>
+</resources>
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index 9bc7680..9e48ea3 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="app_launch_background">#FFF7F5F1</color>
-    <color name="launcher_icon_background">#FFF7F5F1</color>
+    <color name="app_launch_background">#FF121212</color>
+    <color name="launcher_icon_background">#FF121212</color>
 </resources>
diff --git a/docs/assets/icon-dark.png b/docs/assets/icon-dark.png
new file mode 100644
index 0000000..abf6833
Binary files /dev/null and b/docs/assets/icon-dark.png differ
diff --git a/docs/assets/icon-transparent.png b/docs/assets/icon-transparent.png
new file mode 100644
index 0000000..3a1b048
Binary files /dev/null and b/docs/assets/icon-transparent.png differ