I set the colour in the AMS settings, so no problems.
I meant no colour assigned to the actual profile and profile names.
That way I basically switch rolls on the fly even if they have different colours.
E.g.> I start to run out on white PLA on slot 1 and just change the yellow PLA in slot two to white …
The colour, not the rolls…
The flushing matrix gets updated by studio accordingly, never had a problem.
And I don’t abuse this too often for multi colour prints.
Wouldn’t swap from white to black like this just to save the last few cm of filament on a roll…