Revised: 30/7/11 - Removed repeating gradient from sidebars in AddressBook skin & revised some images. This is my original post on how to re-skin 10.7 Lion's iCal and Address Book from leather back to an Aluminium look as in previous versions of Max OS X. This method still works but I have since posted a much easier way to do the same thing using standard installers. Click here to go to the new in