Default to using tree map visualizations. 
Default to using tree map visualizations. 
spendb/spendb,johnjohndoe/spendb,USStateDept/FPA_Core,nathanhilbert/FPA_Core,CivicVision/datahub,johnjohndoe/spendb,pudo/spendb,CivicVision/datahub,pudo/spendb,openspending/spendb,openspending/spendb,spendb/spendb,CivicVision/datahub,USStateDept/FPA_Core,spendb/spendb,nathanhilbert/FPA_Core,nathanhilbert/FPA_Core,USStateDept/FPA_Core,pudo/spendb,johnjohndoe/spendb,openspending/spendb