GIMP

https://www.gimp.org
"GIMP is a cross-platform image editor available for GNU/Linux, OS X, Windows and more operating systems."

See also | :animation :krita



Backlinks: krita animation

CC0 / Public domain dedication To the extent possible under law, d3vid seaward has waived all copyright and related or neighboring rights to "GIMP in Grasmere notebook, including code snippets" (why? how?)