Original GIS icons theme was created by Robert Szczepanek [1] and is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License [2].
Fill free to use it for GIS software or for any other purposes. I only ask you to let me know about that and to include licence.txt file in your work.
TITLE: gis-0.1
DESCRIPTION: GIS icon theme
AUTHOR: Robert Szczepanek
CONTACT: robert at szczepanek pl
SITE: http://robert.szczepanek.pl/
ACKNOWLEDGEMENTS
OSGeo community [3] helped in whole design process.
Especially I want to acknowledge GRASS and QGIS team members for creative comments and support: