If you use Stacks like we do, then you probably love any additional hacks you can do to them. While this Terminal Tip provides no really useful features, it does provide you with some awesome eye candy for your Stacks. This hack gives you a mouse-over gradient (seen above on Terminal) in your Stacks; just open Terminal (/Applications/Utilities) and type in the following command:
defaults write com.apple.dock mouse-over-hilte-stack -boolean YES
After you type in the command, type "killall Dock" to restart the Dock. You will then see the gradient in your Stacks. To get rid of the gradient, just replace "YES" with "NO" in the command above.
Want more tips and tricks like this? Visit TUAW's Mac 101 and Terminal Tips sections.