# File lib/google_chart/base.rb, line 287
    def fill_area(color, start_index, end_index)
      if (start_index == 0 and end_index == 0)
        @markers << "B,#{color},0,0,0"
      else
        @markers << "b,#{color},#{start_index},#{end_index},0"
      end
    end