Leaflet - Layer Name

Fiddle explains the leaflet layers.

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0/leaflet.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0/leaflet.css">
<script src="https://cdn.rawgit.com/kekscom/L.Line3/master/dist/L.Line3.js"></script>
<div id="map"></div>

CSS

#map { 
    height: 400px; 
}

JavaScript

var map = new L.Map('map').setView([52.52020, 13.37570], 16);
new L.TileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
  { attribution: 'Map tiles &copy; <a href="http://mapbox.com">MapBox</a>', name: 'El Nombre', maxZoom: 17 }).addTo(map);
  
var geoJSON = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
      "color": "rgb(255,0,0)"
    },
      "geometry": {
        "type": "LineString",
        "coordinates": [
           [13.37356, 52.52064, 5000],
        [13.37350, 52.51971, 40]
        ]
      }
    }
  ]
};

new L.Line3(geoJSON).addTo(map);