My fix for my old desk involved taping off a large mousing area on the desk, lightly sanding it and then painting it, I used a matt finish and kept testing until I got good results...
I ended up using Black as the base and silver as a subtle dusting for contrast...
I used an onion bag flattened and stretched out over the black, and then lightly dusted it with silver, sort of a spiderman look...
Having the surface more than one color gives slightly better precision.