v17/preference/res/layout/leanback_preference_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2015 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
  -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/main_frame"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/lb_preference_decor_list_background"
    android:orientation="vertical"
    >

    <TextView android:id="@+id/decor_title"
        android:layout_width="match_parent"
        android:layout_height="@dimen/lb_preference_decor_title_text_height"
        android:background="?attr/defaultBrandColor"
        android:fontFamily="sans-serif-condensed"
        android:gravity="center_vertical"
        android:paddingTop="@dimen/lb_preference_decor_title_padding_top"
        android:paddingStart="@dimen/lb_preference_decor_title_padding_start"
        android:paddingEnd="@dimen/lb_preference_decor_title_padding_end"
        android:singleLine="true"
        android:textSize="@dimen/lb_preference_decor_title_text_size"
        android:textColor="?android:attr/textColorPrimary"
        />

</LinearLayout>