apps/CtsVerifier/res/drawable/test_fail_gradient.xml

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <gradient android:startColor="#33F3614B"
              android:centerColor="#66F3614B"
              android:endColor="#FFF3614B"
              android:angle="315"/>
</shape>