<?xml version="1.0" encoding="utf-8"?>
<!-- Based on https://stackoverflow.com/a/27607600/20044811 by TTransmit, CC BY-SA 3.0 -->
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" >

    <item
        android:bottom="8dp"
        tools:width="100dp"
        tools:height="50dp">
        <shape android:shape="rectangle">
            <solid android:color="#ffffff"/>
            <corners
                android:topLeftRadius="2dp"
                android:topRightRadius="2dp"
                android:bottomRightRadius="2dp"
                android:bottomLeftRadius="2dp"/>
        </shape>
    </item>

    <item
        android:gravity="bottom|center_horizontal">
        <vector
            android:width="8dp"
            android:height="8dp"
            android:viewportWidth="50.0"
            android:viewportHeight="50.0">
            <path
                android:pathData="M25,50 50,0 0,0z"
                android:fillColor="#ffffff"/>
        </vector>
    </item>

</layer-list>