<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- NOTE: order is important (the first matching state(s) is what is rendered) -->
    <item
        android:state_selected="true"
        android:drawable="@color/black_half"
        />
    <item
        android:drawable="@color/image_button_ground_color"
         />
</selector>