slight refactor of graph rendering
slight refactor of graph rendering

savaki/atc,simonjjones/atc,utako/atc,zachgersh/atc,savaki/atc,simonjjones/atc,zachgersh/atc,savaki/atc,utako/atc,pivotal-devin-fallak/atc,pivotal-devin-fallak/atc,utako/atc,pivotal-devin-fallak/atc,zachgersh/atc,simonjjones/atc,zachgersh/atc