Mermaid?

[Cammagno]

3.0.0 changelog states: "Working Mermaid diagrams to visualise the implied relations"
so...
is it possible to use breadcrumbs to generate Mermaid at all?
Where can I find some info about how this works?

If not, can someone explain me what the meaning of that line, plese? :)

EDIT: got it, it was about the diagrams in the plugin settings.