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.
If you prefer to do things the manual way and want to see exactly what is going on, then continue reading....
Download the zip files below and follow the instructions further down this article, they have been tested with Mac OS X Lion 10.7 Build 11A511 (Gold Master and Final Release)
Zip Files for Manual Installation (Updated 30/07/11)
Address Book Skin - 10.7-Lion-Address-Book-Aluminium-Skin-v2.zip
iCal Skin - 10.7-Lion-iCal-Aluminium-Skin-v2.zip
They look like this: -
Both of these skins are installed in the same way and using them will not affect your user data (eg. appointments, addresses etc), only the look of the application: -
1 - Make a copy of iCal.app / AddressBook.app ** THIS IS IMPORTANT **
If you don't make a backup you will need to reinstall to revert back to the original look.
2 - Download the relevant file above and unzip it someplace.
3 - Go to your Applications folder and Control-Click on iCal / AddressBook and select 'Show Package Contents'.
4 - Browse to Contents > Resources.
5 - Drag the files from the zip to the Resources folder (You may need admin rights).
6 - Quit and Reopen iCal / AddressBook.
If you decide you want to go back to the original Lion versions and you made a backup before you started, do the following: -
1 - Delete iCal.app or Address Book.app - This can be done in Finder by dragging the application from the Application folder to the trash can. If that doesn't work, go to Utilities > Terminal.app and enter the following command: -
sudo rm -rf /Applications/iCal.app
sudo rm -rf /Applications/Address\ Book.app
2 - Copy back the backup of iCal / Address Book you made earlier in to the Applications folder.
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