Brains create color? Nay, they don't do that.
Strictly speaking they don't since brains are themselves objects and as such they won't do anything.
However, the idea of 'brains creating colours' is really the idea that whatever it is that exists which would be thinking of itself as being a brain is the immediate cause of our subjective impression that we have what we call a brain.
If that's at all understandable...
As you can see it's a pretty complicated idea to express in good English. If anybody can do a better job of it, I'll take it.
This may explain why we usually prefer to go along with the fictional objectivist account. It's just so much simpler to express in English. And this in itself may be a straightforward reflection of the fact that causality rests with whatever that exists in reality that somehow corresponds to what we call the physical world.
Another way to go about it is to keep talking the way we have always done, in terms of objects thought of as causally effective, and keep in mind that such descriptions, and the ideas we have always so expressed, including for example 'causality', 'reality', 'physical', etc., are indeed only descriptive intentions. The reality so described, if any, is, at least for now, inaccessible.
The difficulty with that is to keep in mind that every word that is used in such descriptions, and every idea so conveyed, refers in effect to impressions, percept, ideas, i.e. subjective contents, not any thing that's in existence at the fundamental level of reality (if any).
You'd be forgiven for recoiling at this horrifying perspective.
EB