Show tool tips for dock items
To show a tool tip containing the name of a dock item when you point to it, check this box.
Show Aqua tool tips
To display the tool tips like the Apple Dock, check this box.
Otherwise the tool tips will be displayed on a light yellow rectangle next to the items.
Only show when item names are not visible
To only show the tool tips when dock item names are not otherwise visible, check this box.
If the name bar is visible in a dock, the tool tips will not be shown either.
Delay before showing tool tips
To set the delay from when you point to a dock item until the tool tip is shown, drag this slider.