fet.xpm was taken from the GNOME icon bundle, ubuntu package gnome-icon-theme (original filename document-send.svg). It is licensed under the GNU GPL v2 or later.

(fet.xpm) Upstream authors: see ChangeLog.gz in gnome-icon-theme.

This package was debianized by Radu Spineanu <radu@timisoara.roedu.net> on
Mon, 18 Oct 2004 18:01:48 +0300.

It was downloaded from http://www.lalescu.ro/liviu/fet/index.html

Upstream Author: Liviu Lalescu <liviu@lalescu.ro>

Copyright:

   Copyright © 2002-2014 Liviu Lalescu, Volker Dirr.

   FET is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   FET is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with FET; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

On Debian GNU/Linux systems, the complete text of the GNU General
Public License can be found in `/usr/share/common-licenses/GPL-2'.