Very nice. I know nothing about quantum circuits, but just as a piece of software this is very cool. My one criticism: there's something about the visual style

Very nice. I know nothing about quantum circuits, but just as a piece of software this is very cool. My one criticism: there's something about the visual style of the interactive elements that makes them appear non-interactive until interacted with. The whole application initially looked like a static image to me before I started clicking around and fiddling with it.