Hang on...
Elite was pure mono wireframe, I played it to death. The telly was colour, but the game wasn't.
I did see a BBC version that painted the wireframes with solid colour and very nice it was too. Trouble was it was on a machine with the second 6502 and the Z80 tube, which it required.
Also an actual, honest-to-god CUB monitor standing on a bridge containing two Winchester disks, which weren't required.