Originally Posted by Pzkw993

It's easier to paint a white helmet than it is to paint a black one.

Also, a white helmet reflects some of the heat a black helmet would absorb. When I was racing BMX I permitted myself the vanity of a black helmet for a couple of years. When I broke that helmet the manufacturer offered me a silver one. I was amazed at how much better I felt after a race in a lighter-colored helmet. Some of the younger pros went all the way to a fully reflective helmet which was cooler still.

My M2 Pro is plain white right now as well. I'll probably change that at some point.

Don't forget, some paint can be destructive to your shell. Find a painter who knows, and cares about, the difference.