The icons are licensed as follows:
----------------------------------

button_*.svg, error_*.svg, veusz*.svg, settings_*.png,
 logo.png,
 veusz.ico, veusz*.png, veusz.icns

    Veusz icons

    Copyright (C) 2008 Jeremy Sanders <jeremy@jeremysanders.net>

    This program 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.

    This program 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 this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

kde_*.svg:
 Icons taken from the KDE project. The copyright is as follows:

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
This copyright and license notice covers all Primary images.
Note the license notice contains an add-on.
********************************************************************************
Primary iconset
Copyright (C) 2007 Danny Allen <danny@dannyallen.co.uk>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation,
version 2.1 of the License.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

    **** NOTE THIS ADD-ON ****
The GNU Lesser General Public License or LGPL is written for software libraries
in the first place. We expressly want the LGPL to be valid for this artwork
library too.
Primary iconset is a special kind of software library, it is an
artwork library, its elements can be used in a Graphical User Interface, or
GUI.
Source code, for this library means:
 - for vectors svg;
 - for pixels, if applicable, the multi-layered formats xcf or psd, or
otherwise png.
The LGPL in some sections obliges you to make the files carry
notices. With images this is in some cases impossible or hardly useful.
With this library a notice is placed at a prominent place in the directory
containing the elements. You may follow this practice.
The exception in section 6 of the GNU Lesser General Public License covers
the use of elements of this art library in a GUI.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
