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In TNG, though, Command and Operations switched colours. In The original Series, the Starfleet uniform colours for the totally different divisions were Command Yellow, Science Blue, and Operations Red. In addition they favor crimson lighting aboard their ships and of their buildings.

When somebody describes his job as pointless or worthless, he's necessarily working inside some kind of tacit principle of worth: an thought of what would be a worthwhile occupation, and therefore what is not.