private void createStatusBar() { statusBar = new StatusBar(); statusBar.setText("Alerts"); Button alertsButton = new Button(); alertsButton.textProperty().bind(numberOfAlerts); alertsButton.setBackground( new Background(new BackgroundFill(Color.ORANGE, new CornerRadii(2), new Insets(4)))); alertsButton.setOnAction( event -> { isDetailNodeVisible.setValue(true); detailPane.getSelectionModel().select(0); }); statusBar.getLeftItems().add(alertsButton); statusBar.progressProperty().bind(webEngine.getLoadWorker().progressProperty()); }