A stripped-down minimal example would be very helpful to show how to use the library, just a simple popover with a single control and the absolute minimum required render calls for example. I agree that the fact that this is render-agnostic by the way, and like you mentioned yourself: if you need this you probably have most of the initialisation and shader compilation stuff covered, I wrote some simple wrapper classes for ES2 myself. But a really thin OpenGL (ES) or DirectX specific layer on top of the core functionality would also be great to make the tool a little more accessible of course ;-)
Great work nonetheless, maybe I'll play around with it anyway to see how much work it actually is to embed this in my (at this stage extremely bare-bones) renderer.