Lessons learned

scaleOrdinal vs scaleLinear (only 2 colors!) vs interpolateCool vs d3.schemeColor20c
ribbon source vs index (change fill them differently) https://github.com/d3/d3-scale-chromatic https://github.com/jokecamp/sportdb-build-scripts https://groups.google.com/forum/#!topic/opensport/593H1O7yIdE https://github.com/openfootball/datafile/blob/master/worldcup.rb https://openfootball.github.io/questions.html

TODO

add team name to each arc build dataset tweet it!