code: public final void enableRenaming(final String picturePath) {
  
  		HBox hb = new HBox();
  
  		ImageView iv = getIcon(picturePath);
  		iv.setOnMouseClicked(new EventHandler<Event>() {
  			@Override
  			public void handle(Event mouseEvent) {
  
  				if (((MouseEvent) mouseEvent).getButton().equals(MouseButton.PRIMARY)) {
  					if (((MouseEvent) mouseEvent).getClickCount() == 2) {
  						TextInputDialog input = new TextInputDialog(textProperty().get());
  						input.setTitle(MessagesUtil.getString("dajlab.change_tab_title"));
  						input.setContentText(null);
  						input.setHeaderText(MessagesUtil.getString("dajlab.change_tab_text"));
  						input.setGraphic(null);
  						Optional<String> ret = input.showAndWait();
  						if (ret.isPresent() && StringUtils.isNoneBlank(ret.get())) {
  							updateTitle(ret.get());
  						}
  					}
  				}
  			}
  		});
  		// Without HBox, the click event is not detected ??
  		hb.getChildren().add(iv);
  		setGraphic(hb);
  	}
docs: If used, this method allows the renaming of a tab by the user with a
  double-click on the icon of the tab. It seems there is no mouse event on
  a Tab title, that's why an icon should be used.
  
  @param picturePath
  path of the icon (will be fit to 20px height)