These icons are based on the newest iMac, I did them this morning. I've included 'Shapes' and 'More Shapes' as custom wallpapers from my gallery. They were meant for me but I thought I might just put them in.
• 256 .png's of each plus original PSD for adding own wallpapers or colours.
• Preview image.
That's it enjoy.
You'll have to work out how to replace the wallpapers yourselfs because it would be too hard to explain.