This should settle it!

"Andrew Gideon" wrote in message
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But I don't see that this does anything to improve the realism of these
devices with regard to those illusions or visual efforts I mentioned
earlier. Am I missing this?

Disclaimer: I only read about this and have no practical experience.

From what I understand, you are wearing blue safety glasses. These could be
made tight against your face so everything you see has a blue tint to it.
You peripheral vision is also blue.

You have no problems seeing the instruments, they only have a blue tint to
them.

The windows are covered (on the inside) with orange cellophane/plastic. This
gives the safety pilot an orange tint to everything outside the windows.

When you look out the windows with your blue glasses, all you see is grey.