Idea Summary
As the navigation menu can be implemented by a list, the same could be done for the bredcrumb so that both can be aligned.
Use Case
Complex APEX applications are made of mini sub-applications and so a dynamic navigation menu implemented by a list is well suited for this use case. Unfortutately, breadcrumb cannot be build dynamically by the same list or by a query on the same tables the navigation menu is built on.
Preferred Solution (Optional)
It should be possible to build the breadcrumb as a dynamic list, letting the user to specify a query in order to hav navigation menu and breadcrumb aligned.