More on topic, I've experimented some with Glamorous Toolkit, and I really liked what I saw of it, but (somewhat ironically), I need to dive more into its own model and understand it before I can use it for anything real.

For example, I couldn't find docs on its display stack, so when I wanted to display a graph but with images instead of text for the nodes, I got stuck. Sure, I could dive into the code and eventually get something that worked, but I wouldn't be sure I was coding to the API or to the implementation. It crossed over to "playing around with this tool" to "have to do some real work to understand", so I ended up dropping it.