Leaflet/docs/_plugins/markers-renderers/leaflet-polyline-offset.md

name	category	repo	author	author-url	demo	compatible-v0	compatible-v1	compatible-v2
Leaflet Polyline Offset	markers-renderers	https://github.com/bbecquet/Leaflet.PolylineOffset	Benjamin Becquet	https://github.com/bbecquet	http://bbecquet.github.io/Leaflet.PolylineOffset/examples/example.html		true	false

Adds to L.Polyline the ability to be shifted with a relative pixel offset, without modifying its actual LatLngs. The offset value can be either negative or positive, for left- or right-side offset, and remains constant across zoom levels.