In the we did implement the documentation of our extension. The generated docs should have the same styles and fonts as used on the quarkus docs site (i.e. https://quarkus.io/guides/writing-extensions)
Currently, we needed to copy all fonts and styles from the quarkus repository. It may get out of sync if those styles will be changed in the quarkus repo. Ideally, the quarkus team should expose their styles on the web, then we could use those in the HTML file by importing them via URL.
I’ve asked a question on the cassandra-quarkus extension ticket: https://github.com/quarkusio/quarkus/issues/7876#issuecomment-626725515
Once the solution will be provided, we should change our docs.