Aegis/app/src/main/res/xml/preferences.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
                  android:title="@string/settings">

    <PreferenceCategory
        android:title="Appearance">
        <CheckBoxPreference
            android:defaultValue="false"
            android:key="pref_night_mode"
            android:title="@string/pref_night_mode"
            android:summary="@string/pref_night_mode_description"/>

        <CheckBoxPreference
            android:defaultValue="false"
            android:key="pref_issuer"
            android:title="@string/pref_issuers"
            android:summary="@string/pref_issuers_description"/>
    </PreferenceCategory>

    <PreferenceCategory
        android:title="Security">
        <Preference
            android:key="pref_slots"
            android:title="Key slots"
            android:summary="Manage the list of keys that can decrypt the database"/>
    </PreferenceCategory>

    <PreferenceCategory
        android:title="Tools">
        <Preference
            android:key="pref_import"
            android:title="Import"
            android:summary="Import a database"/>
        <Preference
            android:key="pref_export"
            android:title="Export"
            android:summary="Export the database"/>
    </PreferenceCategory>

</PreferenceScreen>