如何在JavaFX中更改TitledPane中的标题组件

TitledPane titledPane = new TitledPane();
titledPane.setTitle("新标题");

TitledPane titledPane = new TitledPane();
titledPane.setText("新标题");

<TitledPane text="新标题" />

FXMLLoader loader = new FXMLLoader(getClass().getResource("TitledPane.fxml"));
Parent root = loader.load();

.titled-pane .title {
    -fx-text-fill: blue;
}

Scene scene = new Scene(root, 300, 275);
scene.getStylesheets().add(getClass().getResource("styles.css").toExternalForm());