Saves resource index on close

SonicInputDisplay.cs

@@ -42,14 +42,15 @@ public static void Main()
 		theDisplay.MaximizeBox = false;
 		theDisplay.FormBorderStyle = FormBorderStyle.FixedSingle; 
 		theDisplay.StartPosition = FormStartPosition.CenterScreen;
-		theDisplay.BackColor = Color.FromArgb(1, 1, 1); //Almost, but not exactly black
+		theDisplay.BackColor = Color.FromArgb(2, 2, 2); //Almost, but not exactly black
 		theDisplay.Text = "Searching for game...";
 
 		//Thread to handle the window
         new Thread(() =>
         {
             Thread.CurrentThread.IsBackground = true;
             theDisplay.ShowDialog();
+			theDisplay.saveIndex();
             loop = false;
         }).Start();
 
@@ -68,7 +69,6 @@ public static void Main()
 			theDisplay.Refresh();
             System.Threading.Thread.Sleep(14);
         }
-
 	}
 
 	private static void setValuesFromSA2()