Possible arguments: (none), gtk2
Provide support for Xfce related ports. See Section 6.24, “Using Xfce” for details.
The gtk2 argument specifies that the port
      requires GTK2 support.  It adds
      additional features provided by some core components, for
      example, x11/libxfce4menu and
      x11-wm/xfce4-panel.
All FreeBSD documents are available for download at https://download.freebsd.org/ftp/doc/
Questions that are not answered by the
    documentation may be
    sent to <freebsd-questions@FreeBSD.org>.
    Send questions about this document to <freebsd-doc@FreeBSD.org>.