ui/text/RoundedBackground-Kotlin/app/src/main/res/values/styles.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>

    <!-- Base application theme. -->
    <style name="Theme.RoundedBackground" parent="Theme.AppCompat.Light">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="Widget.RoundedBackground" parent="android:Widget"/>

    <style name="Widget.RoundedBackground.SampleTextView">
        <item name="android:lineSpacingExtra">2dp</item>
        <item name="android:lineSpacingMultiplier">1.5</item>
        <item name="android:padding">4dp</item>
        <item name="android:textSize">18sp</item>
        <item name="android:includeFontPadding">true</item>
        <item name="roundedTextHorizontalPadding">2dp</item>
        <item name="roundedTextVerticalPadding">2dp</item>
    </style>

    <style name="Widget.RoundedBackground.Divider">
        <item name="android:background">#CCC</item>
        <item name="android:padding">2dp</item>
    </style>
</resources>