adds default ramps for category
adds default ramps for category

CartoDB/cartodb,splashblot/dronedb,splashblot/deep-insights.js,splashblot/dronedb,splashblot/dronedb,splashblot/dronedb,splashblot/dronedb,splashblot/deep-insights.js,CartoDB/cartodb,CartoDB/cartodb,CartoDB/cartodb,CartoDB/cartodb