godot/platform/android/java/editor/src/main/res/drawable/pip_button_bg_drawable.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

	<item android:drawable="@drawable/pip_button_activated_bg_drawable" android:state_pressed="true" />
	<item android:drawable="@drawable/pip_button_activated_bg_drawable" android:state_hovered="true" />

	<item android:drawable="@drawable/pip_button_default_bg_drawable" />

</selector>