code: public void setGhostStyleEnabled(boolean enabled) {
  
          String styleName = I_CmsInputLayoutBundle.INSTANCE.inputCss().textAreaGhostMode();
          if (enabled) {
              addStyleName(styleName);
          } else {
              removeStyleName(styleName);
          }
      }
docs: Enables or disables the 'ghost mode' style.<p>
  
  @param enabled true if 'ghost mode' style should be enabled