https://www.gnu.org/graphics/graphics.html
The GNU Art Gallery - GNU Project - Free Software Foundation
gnu art galleryfree software foundationproject
https://www.linuxpromagazine.com/Issues/2012/142/GIMP-2.8
Gnu Art » Linux Magazine
Although the developers of GIMP version 2.8 have not achieved all their goals, they’ve awakened great expectations with some impressive new features.
gnu artlinux magazine