As I have a system running Mac OS X Tiger, I thought I’d give the NeXT icon set a try again, nearly all sites hosting the components required have now all shut down, thankfully for the Internet Archive copies were saved.
You can obtain a copy of ShapeShifter from here
I’d mirrored the eXec theme which is now unfetchable because it was available as a download from within ShapeShifter. Download, uncompress & rename eXec.guikit to eXec.guiKit before opening.
My NeXT icon set is available here
The original NeXT theme is available from here.
The NeXT icon set applied to Tiger
NeXT icon set & eXec theme
NeXT icon set & NeXT 2.0 theme
Everything seems ok on Mac OS X 10.4.11 apart from Safari which causes the original OS X skin to display on the menu bar when it’s the active application.