The recommended way to manage series is to use Chart#add_series
A LineSeries defines the title, data and labels for line charts
Creates a new series
The fill color for this series. Red, green, and blue is expressed as sequence of hex digits, RRGGBB. A perceptual gamma of 2.2 is used.
The data for this series.
The labels for this series.
show markers on values
line smoothing on values
Serializes the object