public DefaultScheduleEvent.Builder<T> borderColor(String borderColor) {
            scheduleEvent.setBorderColor(borderColor);
            return this;
        }
@param resizable Whether the event should be resizable. Passing
{@code null} means that the default of the schedule is applied.
Otherwise, this setting overrides the default of the schedule.
primefaces/src/main/java/org/primefaces/model/DefaultScheduleEvent.java