Gadgetbridge/app/src/main/res/layout/activity_weather_notification.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="10dp">

    <TextView
        android:text="Weather on your Pebble"
        android:textAlignment="center"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textStyle="bold"
        android:textSize="20dp" />

    <androidx.legacy.widget.Space
        android:layout_width="match_parent"
        android:layout_height="@dimen/activity_vertical_margin" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/weather_notification_label"
        android:text="@string/weather_notification_label" />

</LinearLayout>