You can set both values to a maximum auf 32 basic colours with 4 tints, allowing you up to 128 different colours. This setting is saved globally IIRC, so you only need to change this once.
go to the same location. Press on any of your colors and edit them as wanted. Once you are happy with your colors remember to “store color set as default” from the option tab to get the same color set for every new project.
if you have older projects pick “reset color set to factory settings” to get the new color set you already saved