It's a little skill I like to call "reading":
Blue silk shirt, scarlet pantaloons, yellow sash around his waist. Long dark blue cloak. He wears knee length soft leather boots and ALWAYS a trademark hat (colour never described as far as I remember) which sometimes has a feather in it. Whiskers is black with white front, paws, muzzle and wing tips (!) and can communicate (telepathically?) with him.
Yours is nice too though
Let me know if you get your hands on Corum. As a hint, his full name means The Prince in the Scarlet Robe!