Notice how the main character (Near the cave.) is in Black and White? .. Well.. She's normally in full color. I managed to use Color Cycling pointed at Cset 6 to change her colors. (As well as Cset 7 and 8.) It's really very simple. Same way you do any other Cset Color Cycling. Just place the Cset you want to be different in those spare Cset areas in the Level Colors area, and when designating the Color Cycling information, you put in Cset 6 / 7 / 8 / # / # / etc as the Cset, Where you "normally" would have put 2 / 3 / 4 / 9 in there.
Go try it out. My next project, is to poison the player by turning his/her heart indicators green. Boy, that'd be fun. I also have a secret Link / Kafei type quest I would love to try in Wish. Oh, boy, it's quite possible now. ;-D
EDIT: NOTE: This does NOT WORK with CSet 8! .. You can thank NoeL for that bit of info..