diff --git a/SpriteLibrary/SpriteEntryForm.cs b/SpriteLibrary/SpriteEntryForm.cs
index 6c49cfc..353e7ec 100644
--- a/SpriteLibrary/SpriteEntryForm.cs
+++ b/SpriteLibrary/SpriteEntryForm.cs
@@ -12,6 +12,7 @@ using System.IO;
 using System.Resources;
 using System.Windows.Forms;
 using System.Collections;
+using System.Drawing.Drawing2D;
 
 
 namespace SpriteLibrary
@@ -120,6 +121,30 @@ namespace SpriteLibrary
         private void UpdateChosenAreaLabel()
         {
             lblChosenArea.Text = ChosenArea.X + "," + ChosenArea.Y + "," + ChosenArea.Width + "," + ChosenArea.Height;
+            UpdateHighlightBox();
+        }
+
+        private void UpdateHighlightBox()
+        {
+            int transparency = 200;
+            Image NewFrontImage = new Bitmap(pbImageField.BackgroundImage.Width, pbImageField.BackgroundImage.Height);
+            Color FillColor = Color.Green;
+            Brush brush = new SolidBrush(Color.FromArgb(transparency, FillColor.R, FillColor.G, FillColor.B));
+            Brush nobrush = new SolidBrush(Color.FromArgb(0,0,0,0));
+            using (Graphics G = Graphics.FromImage(NewFrontImage))
+            {
+                G.FillRectangle(brush, 0,0,NewFrontImage.Width,NewFrontImage.Height);
+                GraphicsPath path = new GraphicsPath();
+                path.AddRectangle(ChosenArea);
+                G.SetClip(path);
+                G.Clear(Color.Transparent);
+                G.ResetClip();
+               // G.FillRectangle(nobrush, ChosenArea);
+                
+            }
+            pbImageField.Image = NewFrontImage;
+            pbImageField.SizeMode = PictureBoxSizeMode.StretchImage;
+            pbImageField.Invalidate();
         }
 
         private void SetUpEmptyInfo()