I've tried all sorts of combinations:
What's wrong ?
Solved! Go to Solution.
Most of that chances that color names in the list don't match color names in your appearance gallery.
If it's a case, you can do one of the following:
1. Manually enter spool color name that defined in the gallery
2. Rename color in the gallery to match those in the spool colors list.
Dumb me !
I forgot to create the corresponding appearance.
But for some reason, even after matching the color labels with the ones I've created on the appearances, the color is not applied to the wires.
I even wiped everything and re-created stuff from the beginning, with the colors on the appearances already existing. No success.
the hints from Yakov seem to be good ones (see also article CS172530 about "Appearances defined with capital letters are ignored for color definition in spools in Creo Parametric").
If they helped you solving the issue, please get back and mark his answer as "Correct", to signal the community that the issue is answered.
And if you found another reason for the failure, please let us know.
Thank you both.
Indeed, making them lowercase corrected things up.
I've named both the appearance and the spools just to be sure. All lowercase. Then, after regenerating, the colors fitted.
Thank you again for the solution
Obs.: I was unable to access the provided link for this CS172530 article due to account restrictions.