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

<?xml version="1.0" encoding="utf-8"?>
<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <PreferenceScreen
        android:icon="@drawable/ic_activity_sleep"
        android:key="screen_trusleep"
        android:persistent="false"
        android:title="@string/huawei_trusleep_title"
        android:summary="@string/huawei_trusleep_summary_light">

        <PreferenceScreen
            android:icon="@drawable/ic_activity_sleep"
            android:key="screen_trusleep_warning"
            android:title="@string/huawei_trusleep_title"
            android:summary="@string/huawei_trusleep_warning">

            <SwitchPreferenceCompat
                android:icon="@drawable/ic_activity_sleep"
                android:defaultValue="false"
                android:key="trusleep"
                android:layout="@layout/preference_checkbox"
                android:title="@string/huawei_trusleep_title"
                android:summary="@string/huawei_trusleep_summary"/>

        </PreferenceScreen>
    </PreferenceScreen>
</androidx.preference.PreferenceScreen>