OptionalcolorOptionallineLine cap style: butt, round, or square.
OptionallineLine dash pattern. Default is null (no dash).
Please note that Internet Explorer 10 and lower do not support the setLineDash method on
the CanvasRenderingContext2D and therefore this option will have no visual effect in these browsers.
OptionallineLine dash offset.
OptionallineLine join style: bevel, round, or miter.
OptionalmiterMiter limit.
OptionalwidthWidth.
The color.