Can you give an example of what you consider an "actual modern GUI framework"? I've sporadically been on the lookout for something like that, and I don't think I've seen it for any language. I don't mean to sound negative; it's just that GUIs seem to be one of those things that tend to progress by the brutality of evolution rather than by recasting everything in light of recent revelation. Most of the battle-tested patterns are 30+ years old.