In OS X El Capitan, when you shake the cursor (rapidly move the cursor back and forth), the OS will replace the cursor with a much larger version until you stop the shaking. This is really useful if you have a hard to see cursor (like a cross hair cursor, for example) or encounter a software bug that temporarily makes the cursor invisible.
Don’t like the feature? Perhaps you are an avid gamer and find it comes up at an inopportune time? No matter, easy enough to make it disappear. In Terminal, enter this command:
defaults write ~/Library/Preferences/.GlobalPreferences CGDisableCursorLocationMagnification -bool YES
To turn it back on, enter this command:
defaults write ~/Library/Preferences/.GlobalPreferences CGDisableCursorLocationMagnification -bool NO
Terminal is in the Applications / Utilities folder.
In the latest El Capitan beta there’s also an option for this in accessibility settings.
many terminal toggles should have GUI counterparts
I’d like to see an option to change the size of the large cursor.
I’m not on El Capitan so I can’t test it so I won’t post it, but a defaults delete would PROBABLY be more appropriate for turning it back on.
not working for me
You can disable this in Accessibility settings without using Terminal—see https://www.dropbox.com/s/bntrp920v0irbyg/Screenshot%202015-10-21%2008.54.00.png?dl=0