^ It was already mentioned that Stahl had an unused Hero map sprite. Same with Lon'qu and Olivia.
Every since the sprite rips got posted I've been seeing a lot of people recreate MUs and honestly, I couldn't resist making a couple myself.
I could try getting all the colors from Miiverse screenshots, though since the sprite rips have been posted I've found out that the colors in Miiverse screenshots are very slightly distorted. For instance, the color used in feMU's skin tone, #fff6e6, turns out as #fdf6e4 in a Miiverse screenshot, and the color used in Donnel's skin tone, #ffe0c7, becomes #fddfc5 in a Miiverse screenshot. Honestly it's a very unnoticeable difference but they still won't be the exact colors.