Gamma Control 6.3: Color Profiles
One feature that has been requested for a long time in Gamma Control is the ability to create a color profile. Now it’s there. If you choose a color profile in System Preferences, in the Screens pane, the operating system takes charge of applying the gamma correction curve you’ve chosen in Gamma Control.
So in Gamma Control 6.3 you can calibrate your screen, export a profile, select it in System Preferences, and never have to open Gamma Control again. Yeah!
This feature is mysteriously unavailable during the free trial though, so you’ll need a purchased copy of the app.