Yes, this is the right way. The ldconfig file not only contain rgb values, but also other properties of the colour.
The spec state "There are exceptions that will be handled on a case by case basis."
Metalized plastic stickers with a chrome looking finish is one such exception, and should use 383.
The spec state "There are exceptions that will be handled on a case by case basis."
Metalized plastic stickers with a chrome looking finish is one such exception, and should use 383.