service/res/values/colors.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 2018, 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>
    <!-- Semi-transparent background color of blocking activity. -->
    <!-- In Call background scrim: grey 200 @ 90% -->
    <color name="activity_blocking_activity_background">#e6eeeeee</color>

    <!-- Color of text in blocking activity. -->
    <color name="blocking_text">#ff212121</color>

    <!-- Background color of exit button. -->
    <color name="exit_button_background">#ff00796b</color>

    <!-- Color of exit button text. -->
    <color name="exit_button_text">#fffafafa</color>

    <!-- Ripple color of exit button background. -->
    <color name="ripple_background">#3d000000</color>
</resources>