tests/VectorDrawableTest/res/color/fill_gradient_radial_item.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
-->
<gradient xmlns:android="http://schemas.android.com/apk/res/android"
          android:centerColor="#ff0000"
          android:endColor="#ff0000ff"
          android:centerX="300"
          android:centerY="300"
          android:gradientRadius="100"
          android:startColor="#ffffffff"
          android:type="radial">
    <item android:offset="0.1" android:color="?android:attr/colorPrimary"/>
    <item android:offset="0.4" android:color="#fff"/>
    <item android:offset="0.9" android:color="?android:attr/colorControlActivated"/>
</gradient>