Diziana Drogo is a fully responsive Zendesk® Guide Help Center Theme (templates).
It can be used by all kind of organizations -- Technology, Education, Tour & Travels, Food, Startups, IT, Medical, Construction, Builder, Marketing, Startup, Fashion, Government, NGO, Not-For-Profit - Companies, Business or Organizations.
This theme includes Diziana Multilevel Menu plugin which allows a sidebar with complete hierarchy on help-center pages (category, section, article).