Well MagicWB to me is just the WB patterns and icons. I don't think
any of the utilities are much use for A1200.
To lock the colour pens use an utility like this:
http://ftp.uni-paderborn.de/pub/aminet/util/wb/FullPalette22.lhaThat will stop MagicWB stealing certain pens so you can comfortably
load anything onto your Workbench screen (particularly MUI apps) that
are likely to change the colours.
I know a lot of icons in MagicWB have "REGISTER ME" written on them
but the very same icons appear in collections of PD icons on Aminet
(by accident!)
Also, if you use DeluxePaint and Iconian you can easily alter the
existing ones or make your own!
:-)
Keep your colours below 6-bit(64)... 5-bit(32) if possible to keep
your ChipRAM bandwidth high.