LibreTube/app/src/main/res/xml/notification_settings.xml

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

    <PreferenceCategory app:title="@string/notifications">

        <SwitchPreferenceCompat
            android:icon="@drawable/ic_notification"
            android:summary="@string/notify_new_streams_summary"
            app:defaultValue="true"
            app:key="notification_toggle"
            app:title="@string/notify_new_streams" />

        <SwitchPreferenceCompat
            android:icon="@drawable/ic_image"
            app:defaultValue="false"
            app:key="show_stream_thumbnails"
            app:title="@string/show_stream_thumbnails"
            app:summary="@string/show_stream_thumbnails_summary" />

        <ListPreference
            android:icon="@drawable/ic_time"
            app:defaultValue="60"
            app:entries="@array/checkingFrequency"
            app:entryValues="@array/checkingFrequencyValues"
            app:key="checking_frequency"
            app:title="@string/checking_frequency"
            app:useSimpleSummaryProvider="true" />

        <ListPreference
            android:icon="@drawable/ic_signal"
            app:defaultValue="all"
            app:entries="@array/requiredNetwork"
            app:entryValues="@array/requiredNetworkValues"
            app:key="required_network"
            app:title="@string/required_network"
            app:useSimpleSummaryProvider="true" />

    </PreferenceCategory>

    <PreferenceCategory app:title="@string/time">

        <SwitchPreferenceCompat
            android:summary="@string/notification_time_summary"
            app:key="notification_time"
            app:title="@string/notification_time" />

        <com.github.libretube.ui.views.TimePickerPreference
            app:key="notification_start_time"
            app:title="@string/start_time" />

        <com.github.libretube.ui.views.TimePickerPreference
            app:key="notification_end_time"
            app:title="@string/end_time" />

    </PreferenceCategory>

</PreferenceScreen>