<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval"
    >

    <corners android:radius="20dp" />

    <solid android:color="@color/transparent" />

    <size
        android:width="20dp"
        android:height="20dp" />

    <stroke
        android:width="1dp"
        android:color="@color/black"></stroke>
</shape>