private Canvas trinagle(String shape, String color, int size) {
        Canvas canvas = new Canvas(300, 300);
        GraphicsContext gc = canvas.getGraphicsContext2D();
        gc.clearRect(0, 0, 350, 350);

        gc.beginPath();
        gc.moveTo(size * 0.5, 0);
        gc.lineTo(size, size);
        gc.lineTo(0, size);
        gc.lineTo(size * 0.5, 0);
        gc.setFill(Color.valueOf(color));
        gc.setStroke(Color.valueOf(color));
        gc.stroke();
        return canvas;