Shades of gray
Personally I miss the flourescent colours but that's just me. *As far as Vai only playing solid colours, what about the root beer jem, or the BSB, or his bad horsie jem (or whatever it's called) *Yeah they've all got colour in them but you can still see the wood grain. *Personally I think the BSB was one of the coolest finishes on a Jem, I just don't like the thinner necks.
Don't go orange, it only looks good on mopar products and fruit! *OK OK, it's just my opinion, I don't like orange much because when I was very tiny my mom used to get me a lot of orange clothes and I hate the colour now. *Oh well, outside of the MC, I think the black and green UV was the best looking of the bunch too.