How low level? I make GoJS, a powerful diagramming library (the focus is more on diagrams and interactivity, than data). It's low level in that you can make a l

How low level? I make GoJS, a powerful diagramming library (the focus is more on diagrams and interactivity, than data). It's low level in that you can make a lot of different things with it, but higher level in that it has things like an undo manager. https://gojs.net/latest/index.html https://gojs.net/latest/index.html