session-android/res/layout-sw400dp/activity_pn_mode.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/default_session_background"
    android:orientation="vertical">

    <View
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"/>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="@dimen/very_large_spacing"
        android:layout_marginRight="@dimen/very_large_spacing"
        android:textSize="@dimen/very_large_font_size"
        android:textStyle="bold"
        android:textColor="@color/text"
        android:text="@string/activity_pn_mode_title" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="@dimen/very_large_spacing"
        android:layout_marginTop="10dp"
        android:layout_marginRight="@dimen/very_large_spacing"
        android:textSize="@dimen/medium_font_size"
        android:textColor="@color/text"
        android:text="@string/activity_pn_mode_explanation" />

    <LinearLayout
        android:id="@+id/fcmOptionView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="@dimen/very_large_spacing"
        android:layout_marginTop="@dimen/medium_spacing"
        android:layout_marginRight="@dimen/very_large_spacing"
        android:padding="12dp"
        android:orientation="vertical"
        android:background="@drawable/pn_option_background">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="@dimen/medium_font_size"
            android:textColor="@color/text"
            android:textStyle="bold"
            android:text="@string/activity_pn_mode_fcm_option_title" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="4dp"
            android:textSize="@dimen/very_small_font_size"
            android:textColor="@color/text"
            android:text="@string/activity_pn_mode_fcm_option_explanation" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="4dp"
            android:textSize="@dimen/very_small_font_size"
            android:textColor="@color/accent"
            android:textStyle="bold"
            android:text="@string/activity_pn_mode_recommended_option_tag" />

    </LinearLayout>

    <LinearLayout
        android:id="@+id/backgroundPollingOptionView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="@dimen/very_large_spacing"
        android:layout_marginTop="@dimen/small_spacing"
        android:layout_marginRight="@dimen/very_large_spacing"
        android:padding="12dp"
        android:orientation="vertical"
        android:background="@drawable/pn_option_background">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="@dimen/medium_font_size"
            android:textColor="@color/text"
            android:textStyle="bold"
            android:text="@string/activity_pn_mode_background_polling_option_title" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="4dp"
            android:textSize="@dimen/very_small_font_size"
            android:textColor="@color/text"
            android:text="@string/activity_pn_mode_background_polling_option_explanation" />

    </LinearLayout>
    
    <View
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"/>

    <Button
        style="@style/MediumProminentFilledButton"
        android:id="@+id/registerButton"
        android:layout_width="match_parent"
        android:layout_height="@dimen/medium_button_height"
        android:layout_marginLeft="@dimen/massive_spacing"
        android:layout_marginRight="@dimen/massive_spacing"
        android:layout_marginBottom="@dimen/medium_spacing"
        android:text="Continue" />

</LinearLayout>