Calendar - Background Events

[peterberlin]

Hello,
in which file you can save background Events (e.g. holidays) as Javacript

var calendar = new Calendar(calendarEl,
{ defaultDate: '2014-11-10', defaultView: 'timeGridWeek',
events: [ { start: '2014-11-10T10:00:00', end: '2014-11-10T16:00:00',
rendering: 'background' } ]
}
);

enter?
Does anyone have an idea?
peter