The Frappr Map creators have added a new feature for the maps. We now have five color choices for the pins to represent whatever we want. I am the administrator of our map and I chose to have the colors represent what model engine we use.
We all have to log on the site and make a choice. I hope you approve of the designators I chose. (They are shown under the map and you need to make your choice farther down the page. Select the colored pin and click "Add Me").
Ben