NewPipe/app/src/main/res/layout/main_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingStart="@dimen/activity_horizontal_margin"
    android:paddingEnd="@dimen/activity_horizontal_margin"
    tools:context=".fragments.detail.VideoDetailFragment">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="30dp"
        android:layout_marginBottom="20dp"
        android:fontFamily="sans-serif-condensed"
        android:text="@string/app_name"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:textSize="40sp" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:gravity="center"
        android:text="@string/main_bg_subtitle"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>