Windows 8 has one major new feature in terms of start screen. The new start screen has a background color as well as a wallpaper (pattern) associated with it. These patterns are available across multiple colors. Although these wallpaper are not extractable from Windows, the guys at 1800PocketPC has made these backgrounds to fit into Windows Phone.The start screen backgrounds have been trimmed to 480 x 800 px size.
63 wallpapers have been created and the author has shared the first set of 23 wallpapers based on Windows 8 start screen. You can see few samples from the pack below.
You can download these wallpapers from here. More wallpapers will be updated, so stay tuned for more details.