#MagicWB
MagicWB is NOT a hack. In fact, it isn't even a program. It's simply a
collection of icons, backgrounds, and fonts that are designed to improve the
look of your Workbench. By itself, it can do no harm.
However, the NickPrefs program which is included with MagicWB to allow backdrop
pictures on pre-3.0 machines is a hack and can cause havoc with all sorts of
programs.
Therefore, using the imagery from MagicWB is always safe. Using NickPrefs is
asking for trouble on certain system configurations.