It’s just design integration like WooCommerce/bbPress, nothing more than that. The integration will not make any changes to the already designed structure of the manual theme.
Manual has its own built-in feature for the “Knowledgebase”, “Documentation” and “FAQ”. We are just providing design support for the different free plugins so that users can have more flexibility when it comes to creating a “support desk”.
Some of the manual demos sites that use weDocs are;