How do I remove and/or change the speed of the minimize animation for application windows in macOS Catalina?

Question

When I click on the yellow minimize button at the top of an application window, it takes forever for the application to minimize and go into the dock. Is there a way to remove or change the speed of this animation?

I recently came across a terminal command that changes the speed of the dock animation defaults write com.apple.dock autohide-delay -int 0; defaults write com.apple.dock autohide-time-modifier -float 1.0; killall Dock where 1.0 can be substituted for any non-negative number, so I assume there is a similar command for changing the speed of the minimize animation.

Answer 1

I do not know of a speed setting for this action.

That said, the default setting for the Dock preference Minimize windows using: is Genie effect and the Scale effect may be a bit faster, so I'd try that one.

There is also a Suck effect, which can be implemented via Terminal, using the following compound command:

defaults write com.apple.dock mineffect -string suck; killall Dock

Note that after using the above compound command you will not see Suck effect as a setting for Minimize windows using: as a Dock preference, however using the following command will show the present value, e.g.:

% defaults read com.apple.dock mineffect
suck
%

Answer 2

Enabling the Reduce Motion setting in the Accessibility section of preferences will speed things up a bit. Hope this helps!