The Tips - Mac Kung Fu - page 186

However, if used with Dock magnification (which you can set using the same
Dock pane of System Preferences), it is entirely possible to use a tiny Dock
size, especially if screen real estate is limited.
Restoring a Normal Size
Using the Dock pane of System Preferences is the best way of returning the
Dock to a normal size (just click and drag the size slider), although you can
return the Dock to the default size by opening a Terminal window and typing
the following:
DEFAULTS DELETE COM.APPLE.DOCK TILESIZE;KILLALL DOCK
Tip 162
Get a Better Stack List
Stacks are the spring-out displays that appear when a folder in the Dock,
such as DOCUMENTS , is clicked. There are three view modes that you can select
by right-clicking the folder: Fan, Grid, and List.
Getting a Better List
As its name suggests, List view simply presents the files and folders in a
rather dull list that you can scroll by nudging the mouse at the top and bottom
of the list. To change List view to a rather more aesthetically pleasing display
complete with a scrollbar that you can click and drag (see Figure 29, Hidden
stack list mode (left) and the default stack list mode (right) , on page 188 ), open
a Terminal window (open Finder, select the Applications list, and then in the
list of applications double-click Terminal within the UTILITIES folder), and type
the following:
DEFAULTS WRITE COM.APPLE.DOCK USE-NEW-LIST-STACK -BOOL TRUE;KILLALL DOCK
The Dock will disappear for a split second, but don't worry—this is fine. You
should be able to test the changes right away.
Tweaking the Size
You can increase or shrink the size of icons in the new look by activating the
stack and then holding COMMAND and tapping the minus and equals keys,
which are on the top right of your keyboard, next to the main number row.