woah this is a bad build. It ain’t supposed to look like that!!!! I’ll update this first thing tomorrow morning. Thanks for posting this. Yikes!!!! This is just the framework screen. I think its possible I might have just posted the wrong file.
I've taken it down for now. No idea why that happened right now. But I'll get this fixed first thing tomorrow. In the meantime, you could try just running this command: ./SpacePad_v1.AppImage --appimage-extract-and-run.... it's possible there's a mint compatibility thing I need to look into, and if there is, this should let you use the app in the meantime.
OK, this was a doozy. I uploaded a new a super solid appimage that works in mint 21.3, full instructions in the readme. If you're using a high density retina display, the window might be significantly smaller than designed. Spent all day trouble shooting it. But a full fix for window scaling will have to wait till v1.2. If you're using a 1920x1080, display, should be perfectly fine!