diff --git a/README.md b/README.md
index 1111748..4b918c9 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,11 @@
 <!-- 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">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/bniladridas/diff-android/main/docs/assets/diff-sign-light.png">
+    <source media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/bniladridas/diff-android/main/docs/assets/diff-sign.png">
+    <img src="https://raw.githubusercontent.com/bniladridas/diff-android/main/docs/assets/diff-sign.png" alt="DIFF Android icon" width="96" height="96">
+  </picture>
 </p>
 
 # DIFF Android
diff --git a/app/src/main/java/com/bniladridas/diff/ui/MarkdownPreview.kt b/app/src/main/java/com/bniladridas/diff/ui/MarkdownPreview.kt
index d04d507..4fe2203 100644
--- a/app/src/main/java/com/bniladridas/diff/ui/MarkdownPreview.kt
+++ b/app/src/main/java/com/bniladridas/diff/ui/MarkdownPreview.kt
@@ -27,9 +27,7 @@ internal fun markdownBodyPreview(
         .replace(markdownLinkPattern) { match ->
             match.groups[1]?.value?.trim().orEmpty()
         }
-        .replace(bareUrlPattern) { match ->
-            match.value.displayUrl()
-        }
+        .replaceBareUrls()
         .lines()
         .map { it.trim() }
         .filter { it.isNotBlank() }
@@ -51,6 +49,11 @@ private fun String.cleanBadgeLabel(): String? {
     return cleaned
 }
 
+internal fun String.replaceBareUrls(): String =
+    replace(bareUrlPattern) { match ->
+        match.value.displayUrl()
+    }
+
 private fun String.displayUrl(): String {
     val withoutScheme = removePrefix("https://").removePrefix("http://")
     return withoutScheme.substringBefore('/').ifBlank { "link" }
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 d373ce1..9a6b27a 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
@@ -1,6 +1,7 @@
 package com.bniladridas.diff.ui.components
 
 import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
@@ -52,6 +53,7 @@ import com.bniladridas.diff.model.TimelineEvent
 import com.bniladridas.diff.model.WorkspaceTab
 import com.bniladridas.diff.ui.formatDate
 import com.bniladridas.diff.ui.markdownBodyPreview
+import com.bniladridas.diff.ui.replaceBareUrls
 import com.bniladridas.diff.ui.shortSha
 import com.bniladridas.diff.ui.theme.BrandOrange
 import com.bniladridas.diff.ui.theme.BrandOrangeSoft
@@ -222,20 +224,19 @@ private fun markdownBlocks(
 
 @Composable
 fun BrandMark() {
+    val signRes = if (isSystemInDarkTheme()) {
+        R.drawable.app_icon_foreground
+    } else {
+        R.drawable.diff_sign
+    }
+
     Row(verticalAlignment = Alignment.CenterVertically) {
-        Box(
-            modifier = Modifier
-                .size(24.dp)
-                .background(Color(0xFF111418), RoundedCornerShape(5.dp)),
-            contentAlignment = Alignment.Center,
-        ) {
-            Icon(
-                painter = painterResource(R.drawable.ic_diff_mark),
-                contentDescription = null,
-                tint = Color.Unspecified,
-                modifier = Modifier.size(18.dp),
-            )
-        }
+        Icon(
+            painter = painterResource(signRes),
+            contentDescription = null,
+            tint = Color.Unspecified,
+            modifier = Modifier.size(24.dp),
+        )
         Spacer(Modifier.width(7.dp))
         Text(
             "DIFF",
@@ -774,7 +775,7 @@ fun CheckCard(
             }
             log?.let { rawLog ->
                 Text(
-                    rawLog,
+                    cleanCheckOutput(rawLog),
                     modifier = Modifier
                         .fillMaxWidth()
                         .background(codeSurface())
@@ -1231,6 +1232,7 @@ private fun cleanCheckOutput(value: String): String =
         .replace("&lt;", "<")
         .replace("&gt;", ">")
         .replace("&amp;", "&")
+        .replaceBareUrls()
         .lineSequence()
         .map { it.trim() }
         .filter { it.isNotBlank() }
diff --git a/app/src/main/res/drawable-nodpi/app_icon_foreground.png b/app/src/main/res/drawable-nodpi/app_icon_foreground.png
index d8b6844..f72321d 100644
Binary files a/app/src/main/res/drawable-nodpi/app_icon_foreground.png and b/app/src/main/res/drawable-nodpi/app_icon_foreground.png differ
diff --git a/app/src/main/res/drawable-nodpi/diff_sign.png b/app/src/main/res/drawable-nodpi/diff_sign.png
new file mode 100644
index 0000000..879d02f
Binary files /dev/null and b/app/src/main/res/drawable-nodpi/diff_sign.png differ
diff --git a/app/src/main/res/mipmap-hdpi/ic_launcher.png b/app/src/main/res/mipmap-hdpi/ic_launcher.png
index bb4d4f6..1ad7514 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 075179b..bd90a71 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 53e2503..6a05c7e 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 3eb4d7d..26cca98 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 b831f78..1b7eaf5 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/test/java/com/bniladridas/diff/ui/MarkdownPreviewTest.kt b/app/src/test/java/com/bniladridas/diff/ui/MarkdownPreviewTest.kt
index 32a2e5c..8409502 100644
--- a/app/src/test/java/com/bniladridas/diff/ui/MarkdownPreviewTest.kt
+++ b/app/src/test/java/com/bniladridas/diff/ui/MarkdownPreviewTest.kt
@@ -27,6 +27,16 @@ class MarkdownPreviewTest {
         )
     }
 
+    @Test
+    fun `shortens bare urls in log style output`() {
+        val body = "Downloaded from https://objects.githubusercontent.com/github-production-release-asset/example"
+
+        assertEquals(
+            "Downloaded from objects.githubusercontent.com",
+            body.replaceBareUrls(),
+        )
+    }
+
     @Test
     fun `hides html image badges behind alt labels`() {
         val body = """<img src="https://img.shields.io/badge/status-ready-green" alt="Status badge">"""
diff --git a/docs/assets/diff-sign-light.png b/docs/assets/diff-sign-light.png
new file mode 100644
index 0000000..f72321d
Binary files /dev/null and b/docs/assets/diff-sign-light.png differ
diff --git a/docs/assets/diff-sign.png b/docs/assets/diff-sign.png
new file mode 100644
index 0000000..879d02f
Binary files /dev/null and b/docs/assets/diff-sign.png differ
diff --git a/docs/assets/icon-dark.png b/docs/assets/icon-dark.png
deleted file mode 100644
index abf6833..0000000
Binary files a/docs/assets/icon-dark.png and /dev/null differ
diff --git a/docs/assets/icon-transparent.png b/docs/assets/icon-transparent.png
deleted file mode 100644
index 3a1b048..0000000
Binary files a/docs/assets/icon-transparent.png and /dev/null differ