Signal-Android/donations/lib/src/main/res/layout/donate_with_googlepay_button.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:clickable="true"
    android:focusable="true"
    android:layout_width="match_parent"
    android:layout_height="44sp"
    android:background="@drawable/donate_with_google_pay_rounded_background"
    android:padding="2sp"
    android:contentDescription="@string/donate_with_googlepay_button_content_description">
    <LinearLayout
        android:duplicateParentState="true"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:weightSum="2"
        android:gravity="center_vertical"
        android:orientation="vertical">
        <ImageView
            android:layout_weight="1"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:scaleType="fitCenter"
            android:duplicateParentState="true"
            android:src="@drawable/donate_with_googlepay_button_content"/>
    </LinearLayout>
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitXY"
        android:duplicateParentState="true"
        android:src="@drawable/googlepay_button_overlay"/>
</RelativeLayout>