"Yeah. The ones I do come in one shape and it's the shape you saw, but even the other shapes diagrams could possibly be are all flat shapes. The details of that one shape are kind of - attached to me and the way I do magic, a little bit like how mana colours are attached to casters and incantations are attached to spells. I could probably figure out how to cast spells with a differently shaped diagram, or change the shape of mine, but it's basically cosmetic and I like the look of mine just fine so I don't care enough to try."