code: public static CalendarPicker<HijriCalendar> hijri(
          VariantSource variantSource,
          Locale locale,
          Supplier<HijriCalendar> todaySupplier
      ) {
  
          return CalendarPicker.create(
              HijriCalendar.family(),
              new FXCalendarSystemHijri(variantSource.getVariant()),
              locale,
              todaySupplier
          );
  
      }
docs: /*[deutsch]
  <p>Erzeugt einen neuen {@code CalendarPicker} f&uuml;r den islamischen Kalender. </p>
  
  @param   variantSource   the variant of the underlying islamic calendar
  @param   locale          the language and country configuration
  @param   todaySupplier   determines the current calendar date
  @return  CalendarPicker
  @return  CalendarPicker