ColorPicker: Label is visible after set style "-fx-color-label-visible:false" when control without focus

Code to reprocude :

@Override
    public void start(Stage stage) throws Exception {
        BorderPane root = new BorderPane();
        ColorPicker picker = new ColorPicker();
        picker.setStyle("-fx-color-label-visible:false;");
        VBox panel = new VBox(30);
        panel.getChildren().addAll(new Button("Button"), picker);
        root.setCenter(panel);
        Scene scene = new Scene(root, 600, 300);
        stage.setScene(scene);
        stage.setTitle(VersionInfo.getRuntimeVersion());
        stage.show();
    }