chamilo-lms2/app/config/sonata/sonata_core.yml

sonata_core:
    form_type: horizontal

    flashmessage:
        success:
            types:
                - { type: my_custom_bundle_success }
                - { type: my_other_bundle_success }

        warning:
            types:
                - { type: my_custom_bundle_warning }
                - { type: my_other_bundle_warning }
        error:
            css_class: danger # optionally, a CSS class can be defined
            types:
                - { type: my_custom_bundle }

        confirmation: # You can add custom types too
            types:
                - { type: custom_bundle_type }

        confirmation: # You can add custom types too
            types:
                - { type: custom_bundle_type }

        confirm: # You can add custom types too
            types:
                - { type: custom_bundle_type }
        normal:
            types:
                - { type: custom_bundle_type }
        success: # You can add custom types too
            types:
                - { type: custom_bundle_type }