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- * The GIMP application core, and other portions of the official GIMP
- distribution not explicitly licensed otherwise, are licensed under
- the GNU GENERAL PUBLIC LICENSE -- see the 'COPYING' file in this
- directory for details.
- [ The below explicit exemption, we hope, clears up the GIMP
- developers' position concerning an ambiguity with the GNU General
- Public License concerning what constitutes a 'mere aggregation'
- versus a combined or derived work. The intention is to make it
- clear that arbitrarily-licensed programs such as GIMP plug-ins do
- not automatically assume the GNU General Public License (GPL)
- themselves simply because of their invocation of (or by) procedures
- implemented in GPL-licensed code, via libgimp or a similar interface
- to methods provided by the pdb: ]
- * If you create a program which invokes (or provides) methods within
- (or for) the GPL GIMP application core through the medium of libgimp
- or another implementation of the 'procedural database' (pdb) serial
- protocol, then the GIMP developers' position is that this is a 'mere
- aggregation' of the program invoking the method and the program
- implementing the method as per section 2 of the GNU General Public
- License.
- * 'libgimp' and the other GIMP libraries are licensed under the
- GNU LESSER GENERAL PUBLIC LICENSE -- see the 'COPYING' file in the
- libgimp directory for details.
- * Icon themes are licensed under Creative Commons by-sa 3.0 or 4.0. See
- the 'COPYING' files in icons/Symbolic and icons/Color respectively.
- * Any data used in artworks, such as brushes, patterns and the like, and more
- broadly likely all data inside the data/ folder should be under a CC0 license
- (Creative Commons Zero) or equivalent, i.e. "No rights Reserved", because GIMP
- contributors clearly don't intend to claim any right on anyone's work just
- because they used GIMP and its default data.
- We cannot clearly give proper licensing on all existing data, prior to the
- addition of this note in the LICENSE file (for historical reasons, simply
- because their contributors are since long gone), though we can say that an
- uncountable number of users have used these for dozens of years and never had
- legal problems as far as we know (it is anyway unclear whether anyone could
- really claim any right for very basic brush or pattern usage). Since 2015, we
- even have a clear FAQ entry to explicitly say the GIMP project has no
- intention whatsoever to put restrictions on people's work:
- https://www.gimp.org/docs/userfaq.html#can-i-use-gimp-commercially
- Therefore any new data file under the data/ folder will be expected to be CC0.
- All contributors are expected to read the LICENSE file and therefore are
- implicitly agreeing to license their data under CC0 by contributing it as core
- GIMP data.
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