Great map! I notice a large amount of green. In fact, most major cities are completely green. Could it be an even tight mix of blue and yellow dots making it

Great map! I notice a large amount of green. In fact, most major cities are completely green. Could it be an even tight mix of blue and yellow dots making it look green? Also, the Microsoft campus near where I live is red (Mfg, trade). Wouldn't they be blue (professional)? How about a color for agricultural jobs.