It would be nice if we could change how color shades/tints are calculated and to change each shade into custom values. E.g. I have a red color as my main color and each shade is exactly 5% darker and each tint is 5% lighter but I can’t set that under shades/tints and I have to add them as separate colors altogether
The upcoming 1.4 version will have an option to edit each shade / tint individually. It’s not exactly the same feature, but it is very fast and easy to edit each one to your needs.