I recently found a nice little terminal bash to really add some zing to the stacks grid interface, if you use stacks regularly, like I do. This is what it does. It may be old, but for new to mac members it's nice.
(clicky)
Once you open terminal (Applications>Utilities>Terminal or Spotlight search Terminal) Enter the text below;
defaults write com.apple.dock mouse-over-hilte-stack -boolean YES
killall Dock
Then it will reset your dock, go to stacks and have a look
thought I might share if you don't already have it.
(clicky)

Once you open terminal (Applications>Utilities>Terminal or Spotlight search Terminal) Enter the text below;
defaults write com.apple.dock mouse-over-hilte-stack -boolean YES
killall Dock
Then it will reset your dock, go to stacks and have a look
thought I might share if you don't already have it.