The above is just a simple illustration of what you can do with the Reapply command. Combined with the stacking of effects together you can accomplish very complex processes in only a few keystrokes. When SPG designed ColorWorks they included features for advanced Gamma Correction. It adjusts for nonlinearities between the voltage sent to the monitor and its color output. Every monitor has a different gamma setting depending on how it was made, how old it is, and how long it's been switched on.
Colors even change slightly as it warms up.
Gamma Correction becomes important in print publishing when you need to be sure the colors you see on the screen are going to be the same when they print out. After designing a graphic in ColorWorks, saving it, and then viewing it with a non gamma-correcting web browser you may find that your images are darker than they were in ColorWorks. Try for 1.8 or 2.2 on each of red, green and blue. Find these settings in Options. If you don't want any gamma correction at all just set it to 1.0.