Widget.Leanback.Headers.VerticalGridView default style

themes.xml

<style name="Widget.Leanback.Headers.VerticalGridView">
    <item name="android:background">?attr/defaultBrandColor</item>
    <item name="android:paddingStart">?attr/browsePaddingStart</item>
    <item name="focusOutFront">true</item>
    <item name="focusOutEnd">true</item>
    <item name="android:verticalSpacing">@dimen/lb_browse_headers_vertical_spacing</item>
    <item name="android:focusable">true</item>
    <item name="android:focusableInTouchMode">true</item>
    <item name="android:contentDescription">@string/lb_navigation_menu_contentDescription</item>
</style>