OptionalcolOptionaldetailLonger explanation shown in the interactive viewer's side details panel and <desc>.
OptionalkindOptionallaneLane, state group, or stage ID this node belongs to.
OptionalrowOptional row hint (0..N) within a stage or lane.
OptionalstepOptional badge text (e.g. "01", "02" on lifecycle states).
Optionalsublabel
Optional column hint (
0..N) when the author wants explicit column alignment.