it could problably get alittle tricky to try to turn parts of a background/wallpaper into links or shortcuts
Yes it can be tedious as it was with my lcars DX desktop theme. but it can be very rewarding in the aspect that it allows you to integrate your wall in to more of an active part of the desktop. cutting the wall sections in to bits then setting them as shortcuts to the various items you wish to launch takes time and effort. but in its self its IMO most rewarding.. good luck on your endeavor