habitica-android/Habitica/res/drawable/adventure_guide_menu_card_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list
    xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <gradient android:startColor="@color/blue_500" android:centerColor="@color/brand_400" android:endColor="@color/red_500" />
            <corners android:radius="8dp" />
        </shape>
    </item>
    <item android:top="3dp"
        android:left="3dp"
        android:right="3dp"
        android:bottom="3dp">
    <shape android:shape="rectangle">
        <solid android:color="?attr/colorWindowBackground" />
        <corners android:radius="6dp" />
    </shape>
    </item>
    <item android:right="3dp">
        <bitmap android:gravity="right" android:tileMode="disabled" android:src="@drawable/adventure_guide_right" />
    </item>
</layer-list>