2D Graphics C#

using System;
using System.Drawing;
using System.Windows.Forms;
   
class CenterPixelSizeImage: Form
{
     Image image = Image.FromFile("Color.jpg");
   
     public static void Main()
     {
          Application.Run(new CenterPixelSizeImage());
     }
     public CenterPixelSizeImage()
     {
          ResizeRedraw = true; 
     }
     protected override void OnPaint(PaintEventArgs pea)
     {
          DoPage(pea.Graphics, ForeColor,ClientSize.Width, ClientSize.Height);
     }     
     protected void DoPage(Graphics grfx, Color clr, int cx, int cy)
     {
          grfx.DrawImage(image, (cx - image.Width)  / 2,
                                (cy - image.Height) / 2,
                                image.Width, image.Height);
     }
}