course_background_coupon_button.xml

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

    <item android:state_enabled="true">
        <shape>
            <corners android:radius="21dp"/>
            <gradient android:endColor="@color/color_FAD642" android:startColor="@color/color_FA5729" />
        </shape>
    </item>
</selector>