<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient
        android:angle="135"
        android:centerColor="#4CAF50"
        android:endColor="#2E7D32"
        android:startColor="#81C784"
        android:type="linear" />
</shape>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient
        android:angle="135"
        android:centerColor="@android:color/holo_blue_bright"
        android:endColor="@android:color/holo_blue_dark"
        android:startColor="#aa00ffff"
        android:type="linear" />
</shape>
Adjust color of the gradient
Adjust color of the gradient
