Every TrafficIncidentOverlayModule knob with its kind, description, range and, where one
value holds everywhere, its default. Static data, readable with no map loaded.
Remarks
The incident lines take the colours of the style's own incident layers, which are
StylingModule's traffic.incidents.* knobs. Not knobs: beforeLayerConfig, focus: false,
which turns the focus treatment off, and events.
Every TrafficIncidentOverlayModule knob with its kind, description, range and, where one value holds everywhere, its default. Static data, readable with no map loaded.