+1
At the moment Clips/Tracks follow one color scheme, Flags/Markers follow another and Folders in the Media Pool have their own as well.
I don't see any reason why they couldn't all be the same either. Especially if you rely on muscle memory to change colors. If they were standardised then you could easily set a number + modifier key for color + relevant action.
Agree about red as well, nothing says "fix this" like bright red.
Also, while I'm not bothered about being unable to choose custom colors, it would be great if we could rename them, and perhaps even set rules for automatic clip colors in the media pool based on the same parameters that are used to create smart bins. But that's a whole other topic