Hey there, I absolutely love this extension and I find it very useful for there to be a tool that assists the creation of layouts.
Unfortunately, I have ran into an issue that I cannot fix no matter what: I am using a canadian french keyboard both in hardware and software and for us, the # key is located where is -I believe- the ` key, on top of Tab and left to 1. While I can set up and use the layout I have created perfectly fine, the # key specifically is never recorded and will never be highlighted inside of OBS. In the web editor, it seems my input of # is recorded correctly though. If you know what I can do to fix this issue or if this might be something I'd have to report to the OBS github, let me know.