Line Chart with Regions

# simple_regions.js

var chart = c3.generate({ data: { columns: [ ['data1', 30, 200, 100, 400, 150, 250], ['data2', 50, 20, 10, 40, 15, 25] ], regions: { 'data1': [{'start':1, 'end':2, 'style':'dashed'},{'start':3}], // currently 'dashed' style only 'data2': [{'end':3}] } } });