media/MediaBrowserService/Application/src/main/res/values/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright (C) 2014 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.
-->
<resources>
    <style name="AppTheme" parent="android:Theme.Material">
        <item name="android:colorPrimary">#ffff5722</item>
        <item name="android:colorPrimaryDark">#ffbf360c</item>
        <item name="android:colorAccent">#ffff5722</item>
    </style>

    <style name="CarTheme" parent="AppTheme">
        <!-- colorPrimaryDark is currently used in Android Auto for:
             - App background
             - Drawer right side ("more" custom actions) background
             - Notification icon badge tinting
             - Overview “now playing” icon tinting
         -->
        <item name="android:colorPrimaryDark">#ffbf360c</item>

        <!-- colorAccent is used in Android Auto for:
             - Spinner
             - progress bar
             - floating action button background (Play/Pause in media apps)
         -->
        <item name="android:colorAccent">#ffff5722</item>
    </style>

</resources>