Dark Info Box in Sampler

I’d like to replicate the look of the dark info box “Description and Resources” that appears in the samples. i.e. http://demo.vaadin.com/sampler#PanelLight
Is there a Vaadin component that I can use to easily replicate this sectioned look?

It’s a Panel that has been heavily themed for that purpose. You could probably find the theme for that from the svn repository: