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      new Draggable(containerEl, {
        itemSelector: '.external-event',
        eventData: function(eventEl) {
          return {
            title: eventEl.innerText,
            backgroundColor: window.getComputedStyle( eventEl ,null).getPropertyValue('background-color'),
            borderColor: window.getComputedStyle( eventEl ,null).getPropertyValue('background-color'),
            textColor: window.getComputedStyle( eventEl ,null).getPropertyValue('co