diff --git a/apps/darkroom-android/android/AndroidManifest.xml b/apps/darkroom-android/android/AndroidManifest.xml
index 5c38357..97a9819 100644
--- a/apps/darkroom-android/android/AndroidManifest.xml
+++ b/apps/darkroom-android/android/AndroidManifest.xml
@@ -30,8 +30,21 @@
         android:version="0x00401000"
         android:required="true" />
 
+    <!-- One name covers both icon generations, which is the point of the
+         `anydpi-v26` qualifier: @mipmap/ic_launcher resolves to the adaptive
+         icon at res/mipmap-anydpi-v26/ic_launcher.xml on API 26 and up, and to
+         the density-matched ic_launcher.png below that. Since minSdk is 28 the
+         PNGs are only ever reached by tooling, but they cost little and aapt2
+         wants a real drawable behind the name. `roundIcon` is deliberately
+         absent: it predates adaptive icons and a launcher that reads it would
+         also be one that ignores the XML, which no device here is.
+
+         The adaptive icon has three layers rather than two. The third,
+         monochrome, is what lets Android 13's themed-icon setting recolour it
+         instead of dropping the app out of the themed set. -->
     <application
         android:label="DarkRoom"
+        android:icon="@mipmap/ic_launcher"
         android:hasCode="true"
         android:allowBackup="false"
         android:supportsRtl="true">
diff --git a/apps/darkroom-android/android/res/mipmap-anydpi-v26/ic_launcher.xml b/apps/darkroom-android/android/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..345888d
--- /dev/null
+++ b/apps/darkroom-android/android/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@mipmap/ic_launcher_background"/>
+  <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+  <monochrome android:drawable="@mipmap/ic_launcher_monochrome"/>
+</adaptive-icon>
\ No newline at end of file
diff --git a/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher.png b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..01b29d8
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_background.png b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_background.png
new file mode 100644
index 0000000..e489b2e
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_background.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_foreground.png b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..e1ea40e
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_foreground.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_monochrome.png b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..e1ea40e
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-hdpi/ic_launcher_monochrome.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher.png b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..5ab6bd4
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_background.png b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_background.png
new file mode 100644
index 0000000..27c91c7
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_background.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_foreground.png b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..1b786ad
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_foreground.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_monochrome.png b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..1b786ad
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-mdpi/ic_launcher_monochrome.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher.png b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..8269dee
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_background.png b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_background.png
new file mode 100644
index 0000000..ee9ff70
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_background.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_foreground.png b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..3b53b86
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_foreground.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_monochrome.png b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..3b53b86
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xhdpi/ic_launcher_monochrome.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher.png b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..841e031
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_background.png b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_background.png
new file mode 100644
index 0000000..667dbeb
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_background.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_foreground.png b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..fea0974
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_foreground.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_monochrome.png b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..fea0974
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxhdpi/ic_launcher_monochrome.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher.png b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..c7cc097
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_background.png b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_background.png
new file mode 100644
index 0000000..ad588e7
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_background.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_foreground.png b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..97ea960
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_foreground.png differ
diff --git a/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_monochrome.png b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_monochrome.png
new file mode 100644
index 0000000..97ea960
Binary files /dev/null and b/apps/darkroom-android/android/res/mipmap-xxxhdpi/ic_launcher_monochrome.png differ
diff --git a/docker/android/package.sh b/docker/android/package.sh
index 9ad34ed..a90a69c 100755
--- a/docker/android/package.sh
+++ b/docker/android/package.sh
@@ -82,11 +82,22 @@ echo "==> packaging APK"
             -dname "CN=Android Debug,O=Android,C=US" >/dev/null 2>&1
     fi
 
+    # The launcher icon is the only resource the app has, but resources go
+    # through aapt2 in two steps regardless: compile turns the source tree into
+    # an intermediate archive of flat files, link folds that into the APK and
+    # builds the resources.arsc table that @mipmap/ic_launcher in the manifest
+    # resolves against. Skipping compile and handing link the directory does
+    # not work — link only reads compiled input.
+    "${BT}/aapt2" compile \
+        --dir /work/apps/darkroom-android/android/res \
+        -o "${OUT}/res.zip"
+
     # aapt2 link needs the compile SDK to resolve android: attributes, and
     # --min-sdk-version is what ends up in the manifest the device reads.
     "${BT}/aapt2" link \
         -I "${SDK}/platforms/android-36/android.jar" \
         --manifest /work/apps/darkroom-android/android/AndroidManifest.xml \
+        -R "${OUT}/res.zip" \
         --min-sdk-version 28 \
         --target-sdk-version 36 \
         -o "${OUT}/base.apk" \
diff --git a/ui/dr-ui/build.rs b/ui/dr-ui/build.rs
index 33cd207..8d6d2d7 100644
--- a/ui/dr-ui/build.rs
+++ b/ui/dr-ui/build.rs
@@ -63,8 +63,18 @@ fn main() {
     // to be able to find it from an installed binary too.
     println!("cargo:rustc-env=DR_STYLE_YAML={}", source.display());
 
+    // `EmbedFiles` rather than the default. Slint's default for a hosted
+    // target is to compile an `@image-url` down to the absolute path it had
+    // on the build machine and open it at runtime, which is fine while the
+    // binary never leaves the tree it was built in and wrong the moment it
+    // does — and it is *already* wrong for Android, where the build happens
+    // inside a container under /work and the device has no such directory.
+    // The failure is silent either way: a missing image loads as empty.
+    // Embedding costs the size of ui/app-icon.png, the only asset this
+    // reaches, since every UI glyph is a Path rather than a file.
     let config = slint_build::CompilerConfiguration::new()
-        .with_include_paths(vec![out_dir.clone(), manifest_dir.join("ui")]);
+        .with_include_paths(vec![out_dir.clone(), manifest_dir.join("ui")])
+        .embed_resources(slint_build::EmbedResourcesKind::EmbedFiles);
     slint_build::compile_with_config(entry(&out_dir, live), config).expect("compiling app.slint");
 }
 
diff --git a/ui/dr-ui/ui/app-icon.png b/ui/dr-ui/ui/app-icon.png
new file mode 100644
index 0000000..11e4427
Binary files /dev/null and b/ui/dr-ui/ui/app-icon.png differ
diff --git a/ui/dr-ui/ui/app.slint b/ui/dr-ui/ui/app.slint
index ae3277e..7e29151 100644
--- a/ui/dr-ui/ui/app.slint
+++ b/ui/dr-ui/ui/app.slint
@@ -203,6 +203,20 @@ component InfoPanel inherits Rectangle {
 
 export component AppWindow inherits Window {
     title: "DarkRoom";
+    // The one raster asset in the UI, and the exception that the header of
+    // icons.slint does not cover: everything drawn *inside* the window is a
+    // Path because a font might not have the glyph, but the window icon is
+    // never drawn by us. It is handed to the window manager, which wants
+    // pixels. Pre-shaped with rounded corners and transparent outside them,
+    // because desktop window managers composite it as-is rather than masking
+    // it the way Android does — the Android launcher icon is a separate,
+    // maskable set under apps/darkroom-android/android/res.
+    //
+    // Where it actually shows up is narrower than it looks: X11 and Windows
+    // read it, and Wayland ignores it outright in favour of matching app_id
+    // against an installed .desktop file, which this repo does not install.
+    // Android ignores it too — there is no title bar to put it in.
+    icon: @image-url("app-icon.png");
     background: Theme.ground;
     preferred-width: 1100px;
     preferred-height: 720px;