tools/layoutlib/bridge/resources/bars/action_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android">
	<ImageView
			android:layout_height="wrap_content"
			android:layout_width="wrap_content"
			android:layout_gravity="center"/>
	<TextView
			android:layout_width="wrap_content"
			android:layout_height="wrap_content"
			android:layout_gravity="center"/>
</merge>