Am I understanding this right from the documentation that I have to create a custom plugin to see an actual color instead of the color value as text in a structure field column? Or is there a simpler way to do that?
There is a plugin for that: https://github.com/sylvainjule/kirby-previews (at least if you use one of the supported color fields). Kirby doesn’t come with a native color picker.
Nice! Exactly what I needed.