The outline of the point, line or polygon.
See https://developers.arcgis.com/web-scene-specification/objects/outline/.
Optional
Color is represented as a three or four-element array.
Outline size in points, positive only.
Number value ranging between 0 (no transparency) to 100 (completely transparent).
The outline of the point, line or polygon.
See https://developers.arcgis.com/web-scene-specification/objects/outline/.