conversations-classic/res/xml/preferences.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
    <PreferenceCategory 
        android:title="Security">
        <CheckBoxPreference
            android:key="trust_unknown_tls_certificates"
            android:title="Trust TLS certificates"
            android:summary="Accounts with untrusted certificates simply will not connect to server"
            />
        <ListPreference
            android:key="default_conversation_encryption_type"
            android:title="Default conversation encryption"
            android:dialogTitle="Default conversation encryption"
            android:entries="@array/conversation_encryption_type_entries"
            android:entryValues="@array/conversation_encryption_type_values"
            android:defaultValue="pgp"/>
    </PreferenceCategory>
    <PreferenceCategory 
        android:title="Notification settings">
        <CheckBoxPreference 
            android:key="show_notification"
            android:title="Notification"
            android:summary="Show notification in status bar when a new message arrives"
            />
        <CheckBoxPreference
            android:key="vibrate_on_notification"
            android:dependency="show_notification"
            android:title="Vibrate"
            android:summary="Also vibrate when a new message arrives"/>
        <RingtonePreference 
            android:key="notification_ringtone"
            android:title="Sound"
            android:ringtoneType="notification"
            android:dependency="show_notification"
            android:summary="Play ringtone with notification"/>
    </PreferenceCategory>
    <PreferenceCategory 
        android:title="Advanced settings">
        <CheckBoxPreference 
            android:key="show_phone_selfcontact_picture"
            android:title="Use Phones self contact picture"
            android:summary="You may no longer be able to distinguish which account you are using in a conversation"
            android:defaultValue="true"/>
    </PreferenceCategory>
</PreferenceScreen>