OptionalcategoryOptionalcolorOptionalfixedForce layout: stay at x / y
OptionalidLink end key (default: the name, then the index)
OptionalnameOptionalsymbolSymbol diameter in CSS px (overrides symbolSize)
OptionalvalueNode value (tooltip, circular slice size, symbolSize: [min, max])
OptionalxLayout 'none' / 'cartesian' position (required there); force: start position (fixed: kept)
Optionaly
Category index or name (names missing from
categoriesare appended)