I don't think quarter corners would be that hard to add, but what do I know. I just believe it would enhance the aesthetic with little investment. I really don't like the awnings at all.
I notice that if I want to select an arrow type when I first select my bow, I cannot open the arrow radial with “r” until I have fired an arrow. I am playing on PC. It really is annoying sending an elemental arrow into a weevil, because it was the last one selected before using a different weapon.