<bg=blue;fg=white>              </>
<bg=blue;fg=white> What's next? </>
<bg=blue;fg=white>              </>

Warning: make sure the twig engine is turned on in framework.yaml

  - If not, add the following to config/packages/framework.yaml:

framework:
    # ...
    csrf_protection: { enabled: true }
    templating:
        engines: ['twig']