res/values/themes.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/**
 * Copyright (c) 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>
    <style name="Theme.Notification" parent="Theme.DeviceDefault.NoActionBar.Notification">
    </style>
    <style name="Theme.UserPicker" parent="@style/Theme.CarUi.NoToolbar">
        <item name="android:windowSplashScreenAnimatedIcon">@drawable/user_picker_splash_icon</item>
        <item name="android:windowDisablePreview">true</item>
        <item name="colorSurface">@color/user_picker_snack_bar_transparent_color</item>
        <item name="colorOnSurface">@color/user_picker_snack_bar_background_color</item>
        <item name="colorAccent">@*android:color/car_accent</item>
        <item name="snackbarStyle">@style/Widget.MaterialComponents.Snackbar</item>
        <item name="snackbarButtonStyle">@style/Widget.MaterialComponents.Button.TextButton.Snackbar</item>
        <item name="snackbarTextViewStyle">@style/UserPickerSnackBarText</item>
    </style>

    <!-- Used by the ActivityBlockingActivity to hide the splash screen icon -->
    <style name="Theme.NoTitleBar.NoSplash" parent="@android:style/Theme.NoTitleBar">
        <item name="android:windowSplashScreenAnimatedIcon">@android:color/transparent</item>
        <item name="android:windowSplashScreenAnimationDuration">0</item>
    </style>
</resources>