OK ive been seeing this as a pretty good idea...
what we can do is-
start a step-by-step theme maker... it will ask you to select the images for all the things in a theme one by one... you provide it... it compiles... bravo
like you start by choosing your windows... it asks for task bar background.. side.. explorer.. and so on... at the end you finish... bravo msstyle!!
also if you choose a theme for base... the images will already be there... you can either choose to replace that image or skip that step which will save the original item of the base theme file and move on to ask for the next file in the queue..
hows that?? like a wizard... AbrAcAdAbrA!!
EDIT - This Wizard Will Be Like An Addon To The WSB... So That You Can Use The WSB like normal too.
!!