An interpreter/editor for the esoteric programming language Piet, which uses images as programs: http://www.dangermouse.net/esoteric/piet.html (I recommend checking out that link if you aren't familiar with Piet already!) Popular Piet interpreters don't always behave in ways that match each other or the specification, so I've included a few different modes: one based on npiet, one based on PietDev, and one based on my own ideas of what fits/works. I can't guarantee that the modes will work EXACTLY the same as their respective existing interpreters, but hopefully most programs made for those interpreters will work here! If you want to import an existing program, you'll need to get it in my image format, which you can do using this converter: https://arctenik.github.io/zatnik-images/utils/
Character input/output only supports ASCII characters