The Enterprise-D had famously color-coded alerts.
Yellow Alert: Get generally sort of (but not too) ready to deal with the unknown. Wonder why you’re not permanently in this condition aboard the Federation flagship.
Red Alert: Crisis situations are better dealt with in poor lighting when you can’t hear each other.
But you need more than an autumn color scheme to deal with the infinite diversity of space. Here are the alerts you never saw on the show.
White Alert: Ship undergoing bullshit which we could end in a second if we remembered we had a transporter.
Intruder Alert: See White Alert.
Indigo Alert: For a technotopia, we sure do seem to have a lot of effective serfs running around in the background on this ship.
Pink Alert: The only women on staff are the emotional one, the one who looks after you when you’re sick, and the one who serves you drinks, and no-one seems to have a problem with this.
Gamboge Alert: Unnecessarily obscure words being used to dress up a fairly basic idea. (In this case yellow).
Showers-of-Sparks Alert: We’re just gonna let these irredeemably violent aliens pound on the ship for a while before we start fighting back. Good luck everyone!
Black Alert: Total power failure to all systems except gravity, because losing life support is free plot tension, but filming people floating is incredibly expensive.
Hypercolor Alert: The far reaches of space have thrown up an event with remarkable similarities to late twentieth century Earth, again.
Pink-layer-of-liquified-human-flesh-on-the-walls Alert: The inertial dampers have failed.
Scorchmarks-on-the-walls Alert: We have holodecks, tranpsorters, and replicators which can direct energy to any location in three dimensional space, but rayguns still need to be manually aimed by people who can’t aim.
Rave Alert: The lights strobe through all possible colors as the comm system relays funky beats, replicators auto-synthesize a psychotropically active fog, and the crew strip naked and have all the good times while the ship’s ultra-computer runs everyday functions far better than they ever could. This happened every time a Star Trek writer decided they couldn’t be bothered writing Star Trek and stuck the officers in the holodeck instead.