Demo section for widgets/extensions

I think most starters will agree, that a demo/example section on this website, that shows all the features of the framework’s widgets and other helper methods would be very very helpful. I guess, this has not top priority for now, but it should not be forgotten. ;)

And it would be even cooler, if the extension section could also provide demos for each extension. But this will probably be complicated to implement in a safe way.