Unless in diamond form, carbon is black, and so carbon fiber is black.
There are some composite weaves that add fibers from other materials, Kevlar and others, which can add some color by itself, but then it's also no longer just "carbon fiber" composite. I think they mention if other materials were added in that case.
I thought in some past posts that Emerald had mentioned the color is part of the coating, but hard for me to recall all the posts over the last five to ten years. Personally, I would want the color in the coating, not from CF mixed with other fibers (unless the strength and sound quality was good)
We will likely get clarification soon.