(Based on the historical counties)
Select the color you want and click on any county on the map. You can right-click on a county to remove its color.
Search for the subdivision you want and click COLOR SUBDIVISION to fill it with the current Fill Color. To remove the color of the selected subdivision, choose REMOVE COLOR .
Add the title you want for the chart's legend and choose a label for each color. Change the color for all counties in a group by clicking on it.