tests/WindowInsetsTests/res/values/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2020 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="@style/Theme.MaterialComponents.Light">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>

        <item name="colorPrimary">@color/primaryColor</item>
        <item name="colorPrimaryDark">@color/primaryDarkColor</item>
        <item name="colorSecondary">?attr/colorPrimary</item>
        <item name="colorOnSecondary">@color/primaryTextColor</item>

        <!-- Window decor -->
        <item name="android:statusBarColor">#ffffff</item>
        <item name="android:windowLightStatusBar">true</item>
        <item name="android:windowLightNavigationBar">true</item>
        <item name="android:navigationBarColor">#ffffff</item>

    </style>

    <style name="bubble_base" parent="">
        <item name="android:textSize">20sp</item>
        <item name="android:layout_marginBottom">16dp</item>
    </style>

    <style name="bubble" parent="@style/bubble_base">
        <item name="android:layout_marginEnd">56dp</item>
        <item name="android:background">@drawable/bubble</item>
        <item name="android:layout_gravity">start</item>
    </style>

    <style name="bubble_self" parent="@style/bubble_base">
        <item name="android:layout_marginStart">56dp</item>
        <item name="android:background">@drawable/bubble_self</item>
        <item name="android:layout_gravity">end</item>
    </style>

    <color name="primaryColor">#1c3fef</color>
    <color name="primaryLightColor">#6f6bff</color>
    <color name="primaryDarkColor">#0016bb</color>
    <color name="primaryTextColor">#ffffff</color>

    <color name="bubble">#eeeeee</color>
    <color name="bubble_self">#D8DCF0</color>

    <dimen name="bubble_corner">16dp</dimen>
    <dimen name="bubble_padding">8dp</dimen>
    <dimen name="bubble_padding_side">16dp</dimen>


</resources>