(Election map - UK parliament constituencies)
Select the color you want and click on any region on the map. Right-click on it to remove its color or hide it.
Add the title you want for the chart's legend and choose a label for each color. Change the color for all regions in a group by clicking on it.
: Zoom in/out
: Move Map
You can also use W,A,S,D,I,O on your keyboard or the controls on the right.
You can still change Fill Color, click on countries to paint them, etc.