Mod idea: Two tone racemenu overlay in UNP..?

[PierraNova]

I want a racemenu overlay that can make any body two-toned. Ideally not going too far down the legs or arms, but still going near the elbows and knee. UNP is preffered but not required. A way to make something like that would be great if no one is willing to do it, thanks for reading this though. small edit: Sorry if i'm a bit hard to understand, i'm not english.