This is a good extension! I would definitely recommend it, but I have to complain. Why are you expecting us to donate just to get extra features that shouldn't even be put behind a paywall? I know you want people to donate, but don't put simple things such as themes and being able show or hide specific buttons behind a paywall, it's just not worth it. I would only put the more advanced features behind the paywall. (Also I'm rating this one star since it seems like the dev doesn't want to reply to anyone.)