add color and penwidth to dot graph
add color and penwidth to dot graph

mrocklin/into,alexmojaki/odo,ContinuumIO/odo,quantopian/odo,ywang007/odo,cowlicks/odo,Dannnno/odo,cpcloud/odo,cpcloud/odo,alexmojaki/odo,mrocklin/into,blaze/odo,quantopian/odo,Dannnno/odo,cowlicks/odo,ContinuumIO/odo,ywang007/odo,blaze/odo