docs: private void updateDaySelection() {
          for (MonthDayView view : controlsMap.values()) {
              view.pseudoClassStateChanged(selectedClass, false);
          }
  
          for (LocalDate date : getSkinnable().getSelectedDates()) {
              MonthDayView view = controlsMap.get(date);
              if (view != null) {
                  view.pseudoClassStateChanged(selectedClass, true);
              }
          }
      }