OptionalarrowOptionalarrowOptionaldonutOptionalfillOptionalglyphsOptionalgradientOptionalhaloOptionaliconOptionallabelOptionallabelHalo/outline behind label text (G3L:LBL-002); renderers express it natively (SVG paint-order stroke, Cytoscape text-outline, SDF distance band).
OptionallabelOptionallabelOptionallabelOptionallodOptionalopacityOptionalpulseOptionalshapeOptionalstrokeOptionalstrokeDash pattern in model units; undefined = solid.
OptionalstrokeOptionaltaperTapered width: wide at source, narrow at target (the Holten/van Wijk-preferred direction encoding).
Icon reference into the registered icon set (G3L:NOD-003).