java/com/android/incallui/commontheme/res/values/styles.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
  -->

<resources>

  <style name="Dialer.Incall.TextAppearance" parent="Dialer.TextAppearance.Header1">
    <item name="android:textColor">?android:attr/textColorSecondary</item>
  </style>

  <style name="Dialer.Incall.TextAppearance.Large" parent="Dialer.TextAppearance.Header1">
    <item name="android:textSize">36sp</item>
  </style>

  <style name="Dialer.Incall.TextAppearance.Label">
    <item name="android:textColor">?android:attr/textColorPrimary</item>
    <item name="android:textSize">12sp</item>
  </style>

  <style name="Dialer.Incall.TextAppearance.Hint">
    <item name="android:textColor">?android:attr/textColorHint</item>
    <item name="android:textSize">14sp</item>
    <item name="android:textStyle">italic</item>
  </style>

  <style name="BottomRowIcon">
    <item name="android:layout_height">24dp</item>
    <item name="android:layout_width">24dp</item>
    <item name="android:layout_marginEnd">8dp</item>
    <item name="android:scaleType">fitCenter</item>
    <item name="colorControlNormal">?colorIcon</item>
  </style>

  <style name="Incall.Button.End" parent="android:Widget.Material.Button">
    <item name="android:background">@drawable/incall_end_call_background</item>
    <item name="android:elevation">8dp</item>
    <item name="android:layout_height">@dimen/incall_end_call_button_size</item>
    <item name="android:layout_width">@dimen/incall_end_call_button_size</item>
    <item name="android:padding">8dp</item>
    <item name="android:src">@drawable/incall_end_call_icon</item>
    <item name="android:stateListAnimator">@animator/disabled_alpha</item>
  </style>

  <style name="Answer.Button" parent="android:Widget.Material.Button">
    <item name="android:stateListAnimator">@animator/button_state</item>
  </style>

  <style name="Answer.Button.Answer">
    <item name="android:background">@drawable/answer_answer_background</item>
  </style>

  <style name="Answer.Button.Decline">
    <item name="android:background">@drawable/answer_decline_background</item>
  </style>

</resources>