Accordion : changed background in content TItledPane

Run this code:

@Override
    public void start(Stage stage) throws Exception {
        BorderPane root = new BorderPane();
        
        Accordion accordion = new Accordion();
        TitledPane pane1 = TitledPaneBuilder.create().text("123456789").content(new Label("Text")).build();
        TitledPane pane2 = TitledPaneBuilder.create().text("Title 2").content(new Label("Text")).build();
        accordion.setMaxSize(250, 250);
        accordion.getPanes().addAll(pane1, pane2);
        accordion.setStyle("-fx-border-color: red;-fx-border-insets: 20;");
        root.setCenter(accordion);
        
        Scene scene = new Scene(root, 500, 500);
        stage.setScene(scene);
        stage.show();
        stage.setTitle(VersionInfo.getRuntimeVersion());
    }