Add custom icons with Symbols

Add custom symbol icons to your map.

---
title:  Add custom icons with Symbols
description: Add custom symbol icons to your map.
type: geojson
options:
  center: [-65.017, -16.457]
  zoom: 5
style:
  extends: https://styles.trailsta.sh/osm-liberty.json
  layers:
    - type: symbol
      icon-image:
        - concat
        - https://picsum.photos/
        - [get, iconSize]
        - /
        - [get, iconSize]
---
{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "message": "Foo",
        "iconSize": 60
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -66.324462890625,
          -16.024695711685304
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "message": "Bar",
        "iconSize": 50
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -61.2158203125,
          -15.97189158092897
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "message": "Baz",
        "iconSize": 40
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          -63.29223632812499,
          -18.28151823530889
        ]
      }
    }
  ]
}

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