Every reachable ranges knob with its kind, description, range or options and, where one value holds
everywhere, its default: the module-wide knobs, how a hovered or clicked band draws, then the labels
along each range's border. Static data, readable with no map loaded.
Remarks
A knob is a plain display value in ReachableRangesModuleConfig, at the path its id names.
Not knobs: beforeLayerConfig, layers and lineLabel.title, which take structured, MapLibre or function
values, and events.
Every reachable ranges knob with its kind, description, range or options and, where one value holds everywhere, its default: the module-wide knobs, how a hovered or clicked band draws, then the labels along each range's border. Static data, readable with no map loaded.