I don't think a developer spending one hour of their time could produce something worth $20 to GIMP. I'm not convinced you could even get a build and Dev enviro

I don't think a developer spending one hour of their time could produce something worth $20 to GIMP. I'm not convinced you could even get a build and Dev environment even set up in that time for most major OSS projects, much less craft a good pull request and follow up to feedback.