Yes, I am referring to the View-->Grid menu. The color matters as I need the walls to lie on a 50px grid but have a 20px width. So when I import the jpg into MapTool the grid will align perfectly and when I apply VBL I will still see some of the wall. That is why I want the 10pc grid black and the 50px grid red to make it visually easier to see where to draw the rectangle select tool and fill with black.