Basic Syntax highlighting, added CodeTextBox to MainWindow to test it.

Befunge/Editor/MainWindow.xaml.cs

@@ -1,12 +1,16 @@
 using System.Windows;
+using Befunge.Editor.CharStyles;
 
 namespace Befunge.Editor
 {
     public partial class MainWindow
     {
-        public MainWindow ()
+        public MainWindow()
         {
-            InitializeComponent ();
+            InitializeComponent();
+
+            EditRegion.TextStyler = new BefungeStyler();
+            EditRegion.UpdateColors();
         }
     }
-}
+}