ooo, yeah, it looks like it's cropped wrong too. There's clearly some messed up scaling going on for you. I'm not able to reproduce this on my end, though (that screenshot was from itch/Chrome).
Do you have browser zoom turned on or are you using some alternative browser/extensions?
idk if you've ever released web versions before, but it can be a real pain because each browser does things a little differently and browser zooms can mess everything up, unfortunately. Yours actually looks like it's not obeying to the canvas pixel resolution specified on itch.
