Currently, the panel "Digital Colors Mixer", uses a fixed set of colors as base colors: black, white, red, green, blue, yellow.

There's already the possibility to customize those colors (which is a very useful feature) but eventually modifications will get lost by closing Krita.

I think it would be useful to let users decide whether restoring colors from last session, maybe also by importing from a file containing settings (colors and ramp values).

A button "Save as Default" and one to "Import" a user set, should work good. I don't know if it's easy to implement, though.

Reproducible: Couldn't Reproduce