this is a lovely addon, thank you for giving us an option that works without modifying existing document formatting/text colors! i think the only thing i'd critique is that there isn't an option to use the original document's background color, and that can be easily remedied by just copy/pasting the hex code.

would you consider / are you planning on doing something similar or adding compatibility with google sheets? it would be much appreciated if so, but honestly even this by itself is a life saver!