The software provides additional data files for the gnome-games package.
One of the best things about this package is that it has no dependencies, making it easy to install and run on your system. Currently, the extra artwork is only compatible with gnome-games. However, there are hopes that these assets will be usable by other packages in the future.
In addition to its current offerings, the gnome-games-extra-data package includes older themes that are useful only if you have an older version of gnome-games or are running multiple versions at once. These themes aren't installed by default, so you'll need to use the --enable-old argument to enable them during configuration.
As far as licensing is concerned, copying of this package is covered under the GPL. For further details on the terms of use, please see the file COPYING. It's worth noting that cards/dondorf.svg is an exception to this licensing and is instead in the public domain.
Overall, the gnome-games-extra-data package is a wonderful addition to the gnome-games suite of software. With its range of extra themes and other artwork, you'll be able to customize your gaming experience to your heart's content.
Version 2.28.0: N/A