This service allows you to enhance an existing chart with the addition of more colors. Be sure to specify the range you would like such as 100, 150, or the Max amount of colors we can do. etc and we will notify you via email when the new chart is ready for purchase. PLEASE DO NOT PURCHASE THE CHART with this service as we will notify you via email once it is complete and you then purchase at that time. Upon check out be sure to mention the name of the chart you would like to be Max Color.