kunkhmer_android/app/src/main/res/drawable/bg_play_number.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <solid android:color="@color/color_white" />
    <corners android:radius="4dp"/>
    <stroke android:width="2dp" android:color="@color/color_gray_300"/>
</shape>