Fixed the eyedropping bug

Paint_2/Form1.cs

@@ -58,9 +58,7 @@ namespace Paint_2
                 if (sketch.CurrentTool.Color != pointedColor)
                 {
                     sketch.ChangePaintToolColor(pointedColor);
-                    eyeDropping = false;
                     RefreshUi();
-                    //sketch.CurrentTool.Color = pointedColor;
                 }
             }
             else
@@ -77,12 +75,15 @@ namespace Paint_2
             }
         }
         private void canvas_MouseUp(object sender, MouseEventArgs e)
+        {
+            if (!eyeDropping)
             {
                 sketch.AddDrawingPoint(MousePositionToCanvasPosition());
                 drawing = false;
                 canvas.Image = sketch.StopDrawing((Bitmap)canvas.Image);
                 RefreshUi();
             }   
+        }
 
         private void tmrRefresh_Tick(object sender, EventArgs e)
         {