static void Menu(GeneralFigure f)
        {
            Console.ForegroundColor = ConsoleColor.White;
            Console.WriteLine("1. Change figure\n2. Change color\n0. Exit");
            int select = Convert.ToInt32(Console.ReadLine());

            switch (select)
            {
            case 1:
                ChooseFigure(f);
                break;

            case 2:
                ChooseColor(f);
                break;

            case 0:
                break;

            default:
                Console.WriteLine("Wrong select, Try again");
                Menu(f);
                break;
            }
        }
        static void Main(string[] args)
        {
            GeneralFigure figure = new GeneralFigure();

            Menu(figure);

            Console.ReadKey();
        }
        static void ChooseFigure(GeneralFigure f)
        {
            Console.WriteLine("1. Show rectangle\n2. Show rhomb\n3. Show triangle\n4. Show trapeze\n5. Show polygon\n6. Show all\n0. Exit");
            int select = Convert.ToInt32(Console.ReadLine());

            switch (select)
            {
            case 1:
                f.ChooseColor();
                f.figure.ShowRectangle();
                Menu(f);
                break;

            case 2:
                f.ChooseColor();
                f.figure.ShowRhomb();
                Menu(f);
                break;

            case 3:
                f.ChooseColor();
                f.figure.ShowTriangle();
                Menu(f);
                break;

            case 4:
                f.ChooseColor();
                f.figure.ShowTrapeze();
                Menu(f);
                break;

            case 5:
                f.ChooseColor();
                f.figure.ShowPolygon();
                Menu(f);
                break;

            case 6:
                f.ChooseColor();
                f.ShowFigures();
                Menu(f);
                break;

            case 0:
                Menu(f);
                break;

            default:
                Console.WriteLine("Wrong select, Try again");
                Menu(f);
                break;
            }
        }
        static void ChooseColor(GeneralFigure f)
        {
            Console.WriteLine("1. Red\n2. Green\n3. Blue\n4. White\n0. Back");
            int select = Convert.ToInt32(Console.ReadLine());

            switch (select)
            {
            case 1:
                f.color = Color.Red;
                Menu(f);
                break;

            case 2:
                f.color = Color.Green;
                Menu(f);
                break;

            case 3:
                f.color = Color.Blue;
                Menu(f);
                break;

            case 4:
                f.color = Color.White;
                Menu(f);
                break;

            case 0:
                Menu(f);
                break;

            default:
                Console.WriteLine("Wrong select, Try again");
                Menu(f);
                break;
            }
        }