diff --git a/res/values-night-v31/colors.xml b/res/values-night-v31/colors.xml
new file mode 100644
index 0000000..5290243
--- /dev/null
+++ b/res/values-night-v31/colors.xml
@@ -0,0 +1,19 @@
+<!--
+  ~ Copyright (C) 2014 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+
+<resources>
+    <color name="ic_launcher_background">@android:color/system_accent1_600</color>
+</resources>
\ No newline at end of file
diff --git a/res/values-v31/colors.xml b/res/values-v31/colors.xml
new file mode 100644
index 0000000..5290243
--- /dev/null
+++ b/res/values-v31/colors.xml
@@ -0,0 +1,19 @@
+<!--
+  ~ Copyright (C) 2014 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+
+<resources>
+    <color name="ic_launcher_background">@android:color/system_accent1_600</color>
+</resources>
\ No newline at end of file