Gadgetbridge/app/src/main/res/xml/devicesettings_banglejs_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <Preference
        android:icon="@drawable/ic_refresh"
        android:key="pref_banglejs_activity_full_sync_trigger"
        android:summary="@string/pref_activity_full_sync_trigger_summary"
        android:title="@string/pref_activity_full_sync_trigger_title" />

    <!-- dummy preference, just to trigger customizer notifications -->
    <EditTextPreference
        android:defaultValue="NOT_RUNNING"
        android:enabled="false"
        android:key="pref_banglejs_activity_full_sync_status"
        android:shouldDisableView="false"
        android:title="pref_banglejs_activity_full_sync_status"
        app:isPreferenceVisible="false" />
</androidx.preference.PreferenceScreen>