From a developer POV, Roles and the SecurityBundle are so convenient, specially role hierarchy in the config. But as a web app grows, the number of roles also grows and with role inheritance, it can be painful to clearly see which role implies another which implies another which implies another (and its possible consequences).

I'm proposing a new command in the security bundle to generate a Mermaid flowchart, easing the understanding of the roles and its hierarchy. An example of the graph generated from the role hierarchy in the doc :

# config/packages/security.yamlsecurity:# ...role_hierarchy:ROLE_ADMIN:ROLE_USERROLE_SUPER_ADMIN:[ROLE_ADMIN, ROLE_ALLOWED_TO_SWITCH]

graph TB    ROLE_ADMIN    ROLE_USER    ROLE_SUPER_ADMIN    ROLE_ALLOWED_TO_SWITCH    ROLE_ADMIN --> ROLE_USER    ROLE_SUPER_ADMIN --> ROLE_ADMIN    ROLE_SUPER_ADMIN --> ROLE_ALLOWED_TO_SWITCH

For now, only the mermaid format is suggested (the only format I know) but as the worfklow dump command, we could implement graphviz and plantuml format later.