Election 2004 Results: “Using County-by-County election return data … we produced the following graphic [map] depicting the results. Of course, blue is for the democrats, red is for the republicans, and green is for all other. Each county’s color is a mix of these three color components in proportion to the results for that county.” Thus, this map shows returns for the 2004 presidential election in shades of purple. From a professor at Princeton University. (citation from LII.org)