@Order(10.0)
      public class MyFlexBox extends AbstractSequenceBox {
        @Override
        protected String getConfiguredLabel() {
          return TEXTS.get("MyLabel");
        }

        @Order(10.0)
        public class MyCheckBoxField extends AbstractCheckBox {
          @Override
          protected boolean getConfiguredGridUseUiWidth() {
            return true;
          }

          @Override
          protected double getConfiguredGridWeightX() {
            return 0.0;
          }

          @Override
          protected boolean getConfiguredLabelVisible() {
            return false;
          }

          @Override
          protected int getConfiguredWidthInPixel() {
            return 20;
          }
        }

        @Order(20.0)
        public class MyDateField extends AbstractDateField {
          @Override
          protected boolean getConfiguredLabelVisible() {
            return false;
          }
        }
      }