This event has the “event_start” label attribute which is defined in the widget as the tag marking events to be fetched.
This event has the “event_end” label attribute which, combined with “event_start”, makes this event a “range” event showing in a limited box between the start and end dates.
This event has the “event_type” label of value “first”, sorting it into the corresponding group with id “first” defined in “event_type_list” attribute on the widget.