@PatrickCooper @judgedread

> zinc sulphide doped with manganese is one of the most efficient phosphors discovered and is stable, well understood, and cheap. It happens to emit an amber color,

I'm taking notes.

> Given a choice, green is the preferred monochrome display color

Of the people that have used monochrome displays, I do not know of any that preferred green to amber; I certainly prefer amber. (I do know plenty that use a green foreground in their terminal emulators, but I think that's usually an affectation, since those same people keep trying to jam colored text into the output of the code they write.)