OptionalerrorThe series' error bars, in the order it lists them. Absent when it has none.
What the series maps back to in the chart, for selection.
OptionallabelsBy point, its data label; null for a point without one. Absent when no point has one.
OptionallineA pareto's line, listed as a series of its own after the bars' (series/<key>-line): its points at the bars' centers, in px.
Line and scatter groups only.
OptionalslotsOn a date axis, the category each point is drawn in, by point: its date's day, month or
year; null for a point with no date. Absent where each point is in the category of its index.
OptionaltrendlinesThe series' trendlines, in the order it lists them. Absent when it has none.
One per category; null is a gap.
By bin, its bar, in px;
nullfor an empty bin.