diff --git a/app/src/benchmark/res/values-night/colors.xml b/app/src/benchmark/res/values-night/colors.xml
index 677eb4e03..cbf22c766 100644
--- a/app/src/benchmark/res/values-night/colors.xml
+++ b/app/src/benchmark/res/values-night/colors.xml
@@ -15,6 +15,8 @@
      limitations under the License.
 -->
 <resources>
+    <!-- Allow users to distinguish between build variants by having a different background color
+        for the launcher icon. See https://github.com/android/nowinandroid/pull/989. -->
     <color name="ic_launcher_background_tint">#FFFFFF</color>
     <color name="ic_launcher_foreground_tint">#FF006780</color>
 </resources>
diff --git a/app/src/benchmark/res/values/colors.xml b/app/src/benchmark/res/values/colors.xml
index d33b7ba72..a98c6d8f6 100644
--- a/app/src/benchmark/res/values/colors.xml
+++ b/app/src/benchmark/res/values/colors.xml
@@ -15,6 +15,8 @@
      limitations under the License.
 -->
 <resources>
+    <!-- Allow users to distinguish between build variants by having a different background color
+        for the launcher icon. See https://github.com/android/nowinandroid/pull/989. -->
     <color name="ic_launcher_background_tint">#000000</color>
     <color name="ic_launcher_foreground_tint">#FF006780</color>
 </resources>
diff --git a/app/src/debug/res/values-night/colors.xml b/app/src/debug/res/values-night/colors.xml
index d6a4c98e0..daa017e4a 100644
--- a/app/src/debug/res/values-night/colors.xml
+++ b/app/src/debug/res/values-night/colors.xml
@@ -15,6 +15,8 @@
      limitations under the License.
 -->
 <resources>
+    <!-- Allow users to distinguish between build variants by having a different background color
+    for the launcher icon. See https://github.com/android/nowinandroid/pull/989. -->
     <color name="ic_launcher_background_tint">#FFFFFF</color>
     <color name="ic_launcher_foreground_tint">#FFA23F16</color>
 </resources>
diff --git a/app/src/debug/res/values/colors.xml b/app/src/debug/res/values/colors.xml
index 6365ddb3f..487a7820b 100644
--- a/app/src/debug/res/values/colors.xml
+++ b/app/src/debug/res/values/colors.xml
@@ -15,6 +15,8 @@
      limitations under the License.
 -->
 <resources>
+    <!-- Allow users to distinguish between build variants by having a different background color
+    for the launcher icon. See https://github.com/android/nowinandroid/pull/989. -->
     <color name="ic_launcher_background_tint">#000000</color>
     <color name="ic_launcher_foreground_tint">#FFA23F16</color>
 </resources>