JavaFX　 background-color

gistfile1.txt

public class FXErycton extends Application {
    
    @Override
    public void start(Stage stage) throws Exception {
        Parent root = FXMLLoader.load(getClass().getResource("FXErycton.fxml"));
        root.setStyle("-fx-background-color: #F0591E;");
        
        Scene scene = new Scene(root);
        
        stage.setTitle("FXErcycton v1.0.0");
        
        stage.setScene(scene);
        stage.show();
    }

Thanx... Worked for me too

I've googled a lot how to do this with java code:
Here is the answer:

panel.setBackground(new Background(new BackgroundFill(Color.RED, CornerRadii.EMPTY, Insets.EMPTY)));

@hydroid7 you can also pass null args instead of CornerRadii and Insets, I think it's easier to read