Ghacks shows you how to pin anything to Windows 8's start page
While it is possible to pin different items to Windows 8′s start page, installed desktop programs and websites come to mind, it is not possible by default to pin files to it. And the items that you can add to the start page can’t really be modified when it comes to their appearance. Selecting a different button or background color is for instance not something that you can do by default.Pin Anything to Windows 8's start page
If you want more control over files and programs pinned to the start screen and how those links look like, you may want to give Pin Anything a try. The Windows Store application provides you with the means to pin files, Steam games and websites to the start page and select how these new links look like on the page.