When creating a category, we can type color code manually, but it’s not convenient. If discourse can provide a color picker or predefined colors, that will be great.
Would definitely like to do it, but never had time in the rush to launch. Some ideas:
show existing colors for categories there so you can pick one sufficiently different enough from what’s already out there (oops two blue categories!)
allow selecting white or black text for better color dynamics
have a predefined set of 16 “designery” default colors to choose from so you don’t have to think so much about colors
Pull requests welcome in this area!
This is completely implemented now.