But Twilight is an ENT ep and a big complaint from the Hilton-D loving folk is that the ship is way too grey. And dark. Also, gel rubbing.
The ship WAS way too grey. You're in space... there's nothing else to look at. I never found it realistic at all that they would send a ship out long-term completely devoid of decoration. The crew would go crazy.
I'm glad Starfleet psychologists figured out by the 23rd century humanoid brains need vivid colors on multi-year missions.