We are and will be limited in our colors as the last audit showed 71% of our business was Restoration shops, street rod shops and misc custom cycle painters and plan and boats we could never come up with colors for 30's thru 60's in our lifetime.
We have a number of shops that make their own such as one takes our white and gets only the tints to be added to the white and mates the all over they are doing on the early vettes and some have played similar games with the orange and reds.
As long as you use good base system tints this is not a problem, just stay away from the crap systems.