RecurveBowSight/res/drawable/evs_ok_background.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/android_green" />

    <stroke
        android:width="2dp"
        android:color="@color/android_green_dark" />

</shape>