Would be great to get a new widget where visitor languages are specified with local versions of languages, and to see the specific browser language codes used. See image:

Think about it as the "Browser version" widget. We have one widget for "Visitor Browser" and another one for specific versions used. So then we could also have a widget that list different language versions used. Would be great to easily see this information with language code to be able to build better multilingual improvements for the visitors! :)