import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.*;
import javafx.application.Application;
import javafx.css.CssMetaData;
import javafx.css.Styleable;
import javafx.scene.layout.Region;
import javafx.scene.paint.Paint;
import javafx.stage.Stage;


public class JavaApplication1 extends Application{

    @Override
    public void start(Stage stage) throws Exception {
        List<CssMetaData<? extends Styleable, ?>> list =  getListWithSubProperty(Region.getClassCssMetaData());
        Region region = new Region();
        for (CssMetaData data : list) {
            if (data.getProperty().equals("-fx-background-color")) {
                System.out.println(data.getProperty()+ " => " + Arrays.toString((Paint[])data.getInitialValue(region)));
            }
        }
    }
    
    private List<CssMetaData<? extends Styleable, ?>> getListWithSubProperty(List<CssMetaData<? extends Styleable, ?>> list) {
        ArrayList<CssMetaData<? extends Styleable, ?>> newList = new ArrayList<>(list);
        for (CssMetaData data : list) {
            List<CssMetaData<? extends Styleable, ?>> sub = data.getSubProperties();
            if (sub != null && sub.size() > 0) {
                newList.addAll(getListWithSubProperty(sub));
            }
        }
        return newList;
    }
    
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }
}