Free, open-source painting software for research schematics, hand-drawn figures and image annotation.
Krita is professional free, open-source painting software aimed mainly at digital painting, illustration, concept art and image annotation. In research it can be used to draw experimental workflow schematics, hand-drawn explanatory figures and ecological or agricultural scene illustrations.
Use cases: research schematics, image annotation, hand-drawn illustrations, teaching figures
Alternative to: some drawing uses of Photoshop / Procreate / Clip Studio Paint
