Desktop GUI development definitely peaked in the late 1990s / early 2000s in terms of lightweight but capable tooling and good design tools. Today it's a damn m

Desktop GUI development definitely peaked in the late 1990s / early 2000s in terms of lightweight but capable tooling and good design tools. Today it's a damn mess, though I see signs of some movement toward improvement driven by the realization that mobile is not going to replace desktop for high-end, developer, and "pro" use cases.