I am using AutoCAD Map 3D 2009 and installed the "raster_design" add on to support my image file. I have a very large aerial photo "ecw" file that I inserted into my drawing. On top of my aerial photo I have the "footprint" of a highway, county boundaries, city boundaries etc. With all this information I am running out of colors to designate the different entities and it gets hard to designate each. My question: Is there any tint or shading etc. that I can use to "color" in my city and county boundaries but still see through them when I plot to see the underlying aerial photo. Hope somebody can help!!!!