On a fresh install this shows nothing:
defaults read com.apple.dock tilesize
I'm trying to set it back to it was when I installed El Capitan. I accidentally grabbed the slider and resized it.
Turns out it is 64 - found this out by deleting the value, restarting the dock, clicking on the resizing area but not dragging it, letting go, and then checking the value.
defaults write com.apple.dock tilesize 64
.
Commented
Nov 15, 2018 at 9:50