Change the Minimize Effect in Mac OS X via Defaults Command
When you click the yellow minimize button in Mac OS X, the snazzy Genie effect pulls the window into the Dock. Although you can change between the Genie and Scale effect from within the Dock preference pane, there is a third hidden effect that Apple has chosen to keep out of the preference pane. The hidden effect is named ‘Suck’, it’s more attractive than the Scale effect, and speedier than the Genie effect. We’ll show you how to activate any of these minimize effects from the command line of OS X by using defaults strings.
To change the minimize effect to any of the three options, type or paste one of the following commands into the Terminal:
Suck Effect (The Hidden Minimize Effect)
defaults write com.apple.dock mineffect -string suck
defaults write com.apple.dock mineffect -string scale
Genie effect (Mac OS X Default)
defaults write com.apple.dock mineffect -string genie
Finally, to activate any of the above settings, you’ll need to reload the Dock by killing it:
Your Dock will momentarily disappear and reappear, with the new minimize effect activated.
You can see the new effect by minimizing a window as usual, clicking on the little yellow traffic light button in an OS X window on your Mac.
As mentioned before, two of these settings are also selectable in the System Preference panel of OS X, whereas Suck remains hidden even in OS X Yosemite.
If you’re aiming for speedy animations, Suck or Scale tend to be the fastest, and Genie tends to be the slowest. But ultimately pick which you enjoy to look at, or what you enjoy to use, it’s your Mac!