OptionalfontOptionalheightHeight available to the chart in px; print mode uses it to keep a pie's legend from overflowing a short chart.
OptionalprintSSR (PDF / preview) rendering, not the interactive canvas (#4940): the
pie legend's type: 'scroll' has nothing to scroll in a static SVG and
clips instead, so print mode wraps it as a fixed plain legend under a
shrunk pie. Screen and print both truncate long labels.
OptionalselectedItems to mark selected (ECharts select state); a number is a category index on every series.
OptionalshowShow the title inside the chart; a host card usually draws its own.
OptionalthemeOptionalwidthWidth available to the chart in px; sizes the category labels so none is dropped.
Base chart text size (6–24, default 12); scales labels and their measured layout. Invalid values use the default.