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<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <shape android:shape="rectangle"> <solid android:color="@color/blue_grey_500"/> </shape> </item> <item android:bottom="2dp"> <shape android:shape="rectangle"> <solid android:color="@android:color/white" /> </shape> </item> </layer-list>