Portal-Camera/portal-capability-test/res/values/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="AppTheme" parent="Theme.Leanback">
        <item name="android:windowBackground">@color/pc_bg</item>
        <item name="android:colorPrimary">@color/pc_blue</item>
        <item name="android:colorAccent">@color/pc_blue</item>
        <item name="defaultBrandColor">@color/pc_blue</item>
        <item name="android:windowContentTransitions">true</item>
        <item name="android:windowAllowEnterTransitionOverlap">true</item>
        <item name="android:windowAllowReturnTransitionOverlap">true</item>
    </style>

    <!-- 1px white @ 20% — use on a View, or via @layout/pc_separator_h -->
    <style name="PcSeparatorHorizontal">
        <item name="android:layout_width">match_parent</item>
        <item name="android:layout_height">1px</item>
        <item name="android:background">@color/pc_separator</item>
    </style>
</resources>