Decent, so far. TYSM for having this available!

Unfortunately it's a bit glitchy on Facebook IM, though (but so far perfectly OK on FB as a whole, Dark Mode or not). If you have Facebook's internally-built Dark Mode on as well as this extension on, the only way you can BARELY read your IM text is if you change the "theme" colour to a gradient (even then it is pretty hard to read).

Otherwise if your IM "theme" is anything else BESIDES a gradient, your background goes transparent and you can hardly read a thing that is written or outputted in the output window via the IM"s text field input, because all of the other text "underneath" shows plain through. So everything you type and see outputted, gets all garbled up in your output window, as well as your input text field.

Otherwise, looks great globally on other sites...like Google.ca (etc.), for now. Happy to keep you posted if any other glitches turn up. Thank you SO MUCH FOR HAVING THIS, btw! My existing on and off migraines will GRACIOUSLY appreciate this! <3 ,\m/

Looking forward to seeing the FB IM glitches fixed, soon.

Cheers and all of the best to everyone in the developing world out there!

Hope to be able to join you all some day, once I'm done with or able to take a significant break, from sewing masks.

--RoS.