Better way to have dark toolbar and light theme

OpenKeychain/src/main/res/layout/toolbar.xml

@@ -4,6 +4,7 @@
     android:id="@+id/toolbar"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:minHeight="?attr/actionBarSize"
     android:background="?attr/colorPrimaryDark"
-    app:theme="@style/KeychainToolbarOverflow"
-    app:popupTheme="@style/KeychainTheme" />
+    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+    app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />