<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/webrtc_control_background"/> <item android:top="5dp" android:left="5dp" android:right="5dp" android:bottom="5dp" android:drawable="@drawable/ic_volume_up_white_24dp"/> </layer-list>