Don't worry, I was teasing!
There are enough of these around for us to know they continued being made after MH left, but they are early, if you consider all of the '70s (and perhaps a little into the '80s) to be early.
Colour is processed seperately from other aspects of vision. And even that is not simple, because your brain has to adjust for the ambient light (that was what made that photo of the black and blue/white and gold dress appear the way it did)
Movement is percieved 200 milliseconds before anything else. (Prof. Zeki.)
In fact, all of vision is broken up into individual component parts before your brain reassembles it into something you can understand, for you. There are bits that process luminance discontinuity, bits that process straight edges, bits that process whether something is in front of, or behind something else - it's incredibly complicated and difficult.
The back of your eyeball is technically part of your brain.
Your perception of colour is not in any way "underdeveloped". It's yours, it works for you and it gives you all the ranges you need.
Just because it might not be on the same scale as somebody else's, doesn't mean you do not have all the same nuances.
It just means we all get in muddles using words to describe it. All of us see things differently.
