tachiyomi/app/src/main/res/xml/pref_sources.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.preference.PreferenceScreen
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orderingFromXml="true">

    <MultiSelectListPreference
        android:key="@string/pref_source_languages"
        android:title="@string/languages"
        android:summary="@string/languages_summary"/>

    <PreferenceCategory
        android:key="pref_sources"
        android:persistent="false"
        android:title="@string/accounts"/>

</android.support.v7.preference.PreferenceScreen>