<listitem><para>Takes a string
argument which sets the session class.
The XDG_SESSION_CLASS environmental variable
- takes precedence.</para></listitem>
+ takes precedence. One of
+ <literal>user</literal>,
+ <literal>greeter</literal>,
+ <literal>lock-screen</literal> or
+ <literal>background</literal>. See
+ <citerefentry><refentrytitle>sd_session_get_class</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for details about the session class.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><option>type=</option></term>
+
+ <listitem><para>Takes a string
+ argument which sets the session type.
+ The XDG_SESSION_TYPE environmental
+ variable takes precedence. One of
+ <literal>unspecified</literal>,
+ <literal>tty</literal>,
+ <literal>x11</literal> or
+ <literal>wayland</literal>. See
+ <citerefentry><refentrytitle>sd_session_get_type</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+ for details about the session type.</para></listitem>
</varlistentry>
<varlistentry>