The HS group here allows for any color to be worn as long as both partners match. I only carry two colors, Black and Powder, and I always wear Black on the plate. The way I see it is, Hot is Hot! What is a couple of degrees?
If a partner contacts me and wants to wear a different color, then I'll bring it, but there are too many colors to pick from and I don't work enough HS games to warrant carrying more than 5 shirts in my bag. Long sleeve black plate, short sleeve black and powder plate, and short sleeve black and powder base.
I should probably just take the powder plate one out of the bag.
