Check out the Official Galaxy S III Apex Launcher Theme. This theme is the first of its kind and features High Res (96x96) Stock Icons from the S3, Stock 720p HD Wallpapers (6) loaded in a standalone wallpaper applier, TouchWiz UX App Drawer Style and All apex images changed to S3 White color and More.
How to Apply :
1. Download Apex launcher from Below Link and install it
2. From home screen push menu button and select theme setting.