Route StylingWhen a routing layer is constructed, default route color, origin, destination, and stop icons will be used when
stopIconroute options are not provided. To change these default route properties, either supply custom color, and icons when constructing a layer or use
updatefunction after a layer is created. Requires Trimble Maps v3.0.0 or later. Requires Trimble Maps v3.1.0 or later.