Like http://maqetta.org http://maqetta.org and https://www.sencha.com/products/architect/ https://www.sencha.com/products/architect/ It seems like once a GUI l

Like http://maqetta.org http://maqetta.org and https://www.sencha.com/products/architect/ https://www.sencha.com/products/architect/ It seems like once a GUI library gets mature enough to get a graphical editor, some new library comes along that the herd moves to and the old one dies a slow death