It's weird, I wouldn't expect this to be caused by a change in OS, but no matter which browser I use, Firefox or Chromium, I can't seem to get the theme editor to come up ever since I switched from Windows to Linux Mint. Upon clicking the button, a dashed rectangle appears around it and nothing seems to happen rather than the editor showing up at the left as usual. I've installed the Itch app with the same results, which isn't much of a surprise as I'm sure it runs on a variation of Chromium just like I'm already using.

Any ideas why this would be?

Thanks in advance!