2011/7/9 Carsten Fuchs <carsten.fuchs@...2653...>:
Dear Inkscape developers,
my name is Carsten Fuchs and I'm the main developer of the Cafu game and graphics engine, http://www.cafu.de
We're currently in the process of updating the user interfaces of our graphical editor applications, i.e. the Map Editor, GUI Editor and Model Editor. So far, our new icon sets are based on own artwork and icons from the GNOME Icon Theme 3.0, which is licensed both under the LGPL v3 as well as under CC BY-SA 3.0.
You would need to ask the original author of those icons:
http://www.jesusda.com/me/ I think his email is: info@...2111...
I'm asking this mainly because we're offering the Cafu engine both under the GPL v3 as well as under custom commercial license. At the same time, it generally seems widely unclear how the software-oriented GPL applies to artwork: e.g. if we exported about six icons from tango_icons.svg to PNG image files, and shipped them with our apps (both source code and binary editions) as separate files, i.e. not embedded in any executable or other file, and load them at runtime, would that still require us to omit them from our commercially-licensed packages?
You should be OK even with a commercial package as long as you ship the SVG version of icons (e.g. cut out the SVG icons you need into separate files) and the license and copyright is indicated in some way (e.g. RDF tag). As far as I know, for SVG artwork, the SVG file is considered to be the source.
Regards, Krzysztof