Not sure if this is significant for this discussion.

An eye doctor, I belive his name is Kyama?, wrote a book called What Fish See. In it he describes the use of color filters to duplicate various underwater conditions to anayze how fishing lures look underwater.

BUT one point he makes in passing is that to get true colors you cannot just use any filters over a flashlight. Just because you have a a filter that looks red or yellow to you, the light it produces when light passes through it may not be what you think, especially if the light itself is not pure white.

I heard him give a lecture in which he described how hard it was for him to find the right filters, pure white lights, etc. - most being either a bit blue or yellow. Of course he was being ultra scientific and mesuring wave lengths, etc.

Important? A nitpick? Dunno.