OptionaltitleTitle for the node size legend.
OptionaltitlePadding between title and legend content in pixels.
OptionalvaluesCustom values to display in the node size legend. If null, values are auto-generated.
OptionallabelsManual override for legend labels.
OptionalmarginTop margin for the node size legend in pixels.
OptionallabelCustom formatter function for legend labels.
Configuration for node size legend in flow maps.