Zero-based index of the part within the structure's flat parts array.
The part's display label.
The part's hit locations, in order.
OptionalroleThe part's functional roles rendered as a compact display badge (e.g.
"Vital, Core"), or empty when the part fulfills no roles. Shown by the
Profile body-structure tree's chip--role badge.
The part's shortcode (its row key within the structure), for the Edit action.
A body part paired with its hit locations, for the Body Locations tree.