-fixed palmGrid detected Grid Color

bbiwarg/Graphics/TouchEventVisualizer.cs

@@ -99,7 +99,7 @@ namespace bbiwarg.Graphics
             }
 
             if (touched)
-                OutputImage.drawRectangle(cellX1, cellY1, size/numColumns, size/numRows, Color.Gray, -1);
+                OutputImage.drawRectangle(cellX1, cellY1, size/numColumns, size/numRows, Constants.PalmGridColor, -1);
 
             //-- Current Touch Event --
             if (touched)