title: How to set background color to fixed in c# GTK mono?
body: <p>I am new to C# Gtk in mono. I have made a window with two buttons with this code :</p>
  
  <pre><code>using Gtk;
  using Gdk;
  
  class FirstScreen : Gtk.Window
  {
  
  public FirstScreen() : base("Buttons")
  {
      SetDefaultSize(250, 200);
      SetPosition(WindowPosition.Center);
  
      DeleteEvent += delegate { Application.Quit(); };
  
      Fixed fix = new Fixed();
  
      Button btn1 = new Button("Take Photo");
  
      Button btn2 = new Button("Take Video");
  
      Gdk.Color col = new Gdk.Color();
      Gdk.Color.Parse("red", ref col);
      fix.(StateType.Normal, col);
  
      fix.Put(btn1,30, 80);
      fix.Put(btn2, 130, 80);
  
  
      Add(fix);
      ShowAll();
  }
  
  
  public static void Main() 
  {
      Application.Init();
      new FirstScreen();
      Application.Run();
  }
  </code></pre>
  
  <p>}</p>
  
  <p>I Want the Background color of the window or the fixed to be changed .How could we do that Please help?</p>