Of a framework? As in API? I am not sure if I understand, how would one make a screenshot of ROR? or Django? or jQuery?
Unless you mean top application using a given framework, but then, it is not indicative of the framework, but the amount of time one spent on graphics on top of the framework.
I'd say "screenshot." I've always like jQuery's demos, such a thing could be done for the frameworks to provide a quick insight into how they're implemented.
Unless you mean top application using a given framework, but then, it is not indicative of the framework, but the amount of time one spent on graphics on top of the framework.