10.3: Remove the alias badge arrow
From what I've come across, this is a lot easier to do in Panther than in previous builds.
Note that this affects all aliases system-wide and you must be logged in as an Administrator.
Go to /System -> Library -> CoreServices, and change the owner for SystemIcons.bundle to
yourself by control-clicking and choosing Get Info. Select Details under Ownership and Permissions.
Be sure to change permissions back after completing this hint. If you're a terminal junkie,
su and chmod your way to the next step. Control-click on SystemIcons.bundle and select Show Package Contents.
Go to Contents -> Resources and change the filename AliasBadgeIcon.icns to OLDAliasBadgeIcon.icns
(or whatever your heart desires). Relaunch Finder and you should be set.
quelle:
http://www.macosxhints.com/