Its really just a build decision. You could include libgag sources right into glob2 and bypass the library altogether and it would be the same. libgag is as much a part of glob2 as anything else. All of the current menus are done with libgag, converting to anothes toolkit like CEGUI or GiGi (what im using for another project, i am happy with it) would require allot of code.
-- Extra cheese comes at a cost. Bradley Arsenault.