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

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

    <PreferenceScreen
        android:key="screen_disconnect_nofifiction"
        android:icon="@drawable/ic_signal_cellular_connected_no_internet_0_bar"
        android:persistent="false"
        android:title="@string/prefs_disconnect_notification">

        <!-- workaround for missing toolbar -->
        <PreferenceCategory android:title="@string/prefs_disconnect_notification" />

        <ListPreference
            android:defaultValue="@string/p_off"
            android:entries="@array/activate_display_on_lift"
            android:entryValues="@array/activate_display_on_lift_values"
            android:key="disconnect_notification"
            android:summary="%s"
            android:title="@string/prefs_disconnect_notification" />

        <nodomain.freeyourgadget.gadgetbridge.util.XTimePreference
            android:defaultValue="00:00"
            android:key="disconnect_notification_start"
            android:title="@string/mi2_prefs_do_not_disturb_start" />
        <nodomain.freeyourgadget.gadgetbridge.util.XTimePreference
            android:defaultValue="00:00"
            android:key="disconnect_notification_end"
            android:title="@string/mi2_prefs_do_not_disturb_end" />

    </PreferenceScreen>

</androidx.preference.PreferenceScreen>