i have written code to do this - not sure if it can be done any other way, with later versions of access
you basically need code to open every form (say) in design mode, and then iterate all the controls etc, and set details as you require, and then save the changed design. Offhand you need to iterate the forms container collection.
you could probably achieve a similar thing at run time, in each forms open event - depends how quick it would run. That way you could let your users "design" their own look and feel