OptionalidThe figure's id. Defaults to the container's, then to a generated one.
OptionaltitleThe figure's title. Defaults to the chart's own title.text.
OptionalpercentileFan charts drawn on the chart, each read as one percentile_band layer.
ECharts has no range series: a band is a line with areaStyle stacked
on an invisible line holding its lower edge, so the filled area runs
between the two. Nothing on either says which quantiles those edges are,
so they are stated here: median names the median's line and each
band's series the filled series of its stack, both by the series'
name (or id), with the band's two levels as fractions. The band's
edges are read from the stack ECharts computed -- the bottom it rests on
and the top it reaches -- so they are the values the chart draws.
Options accepted by createMaidrFromEChart.