Costume Headpiece/Festival Hat compatability with Regular Headpieces

The new costume headpieces and festival hat displays are mutually exclusive with the normal headpiece/helm worn. In other words, they can't and don't both show up at the same time. There are some festival hats/costume headpieces, though, that don't cover the entire head, and there are some regular headpieces which do the same. Why not then, can one wear both? Wear glasses and Dwayna's Diadem, or a Norn Woad and a Yuletide Cap? For the sake of armor combinations, I think it would be a noble idea to allow certain headpieces (festival/costume and regular) to be displayed at the same time. The type of combinations I don't think would work would be the ones that use the full head (i.e. full helmets, charr mask, scarecrow mask, lion mask, etc.). There could be some exceptions (glasses on a charr mask, a yultide cap on top of a helmet). What does everyone else think?

Would take an insane amount of programming to work that out. Considering the number of possible variations of armor and masks this would take a lot of work. The masks are SUPPOSED to remove your headgear for appearance. I understand why you would want some combos, but I think the work involved is more than is needed for a simple thing. And yes, I'd love to wear my spectacles with a wreath crown, but I am happy I can have armor with the masks now.

it would be quite difficult to achieve this and im quite happy that they finally made it were u can wear the festive hats and still have ur armor at the same time finally, lols >_<