Every terrain knob with its kind, description, range or options and, where one value holds
everywhere, its default. Static data, readable with no map loaded.
Remarks
A knob is a plain display value in TerrainModuleConfig, at its id's path. The hillshade's
look reads the loaded style's own value while unset, which getKnob reports. events is
not a knob.
Every terrain knob with its kind, description, range or options and, where one value holds everywhere, its default. Static data, readable with no map loaded.