What is this component?

[anderer]

It this theme component which creats the banner

Welcome Link Banner

Summary Welcome Link Banner is a simple banner, similar to the one in use here on Meta, that allows you to add some custom text and 1-4 links. Preview Preview on theme-creator.discourse.org Repository Link https://github.com/discourse/discourse-welcome-link-banner New to Discourse Themes? Beginner’s guide to using Discourse Themes Install this theme component [Welcome Link Banner] This component comes with a varie…

It is the default theme.

Regarding plugins i am not sure - but definitely docs / documentation.

Discourse Docs (Documentation Management)

Summary Discourse Docs provides the ability to find and filter knowledge base topics Repository Link https://github.com/discourse/discourse-docs Install Guide How to install plugins in Discourse Features The Docs plugin is a continuation of development on the Knowledge Explorer Theme Component. You can see it in action at https://meta.discourse.org/docs. In essence, Docs allows for easier surfacing of knowledge-base style topics ac…