I didn't think of that to be honest. I think it's fine for you to use the shader in commercial games, as long as you credit me, something like "Mode 7 Shader for GMS2 by MrLevRocks" or the like. If you have interactive/text credits that allow for it (e.g. on a website or in a browser game) feel free to make the name of the tool a link to this itch.io page, that'd be nice. Thank you for asking first!