Examine source code of eBird Sightings Mapper

{
  "manifest_version": 3,
  "name": "eBird Sightings Mapper",
  "version": "1.3",
  "description": "Interactive maps for eBird sightings using your data. Visualize alerts, targets, checklists, life lists, and media locations.",
  "permissions": [
    "scripting",
    "activeTab",
    "notifications"
  ],
  "host_permissions": [
    "https://api.ebird.org/*",
    "https://ebird.org/alert/*",
    "https://ebird.org/lifelist*",
    "https://ebird.org/mychecklists*",
    "https://ebird.org/targets*",
    "https://ebird.org/region/*",
    "https://media.ebird.org/*"
  ],
  "action": {
    "default_title": "Map Sightings",
    "default_icon": {
      "16": "icon-16.png",
      "48": "icon-48.png",
      "64": "icon-64.png",
      "128": "icon-128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    {
      "resources": [
        "leaflet/leaflet.js",
        "leaflet/leaflet.css",
        "leaflet/leaflet.fullscreen.min.js",
        "leaflet/leaflet.fullscreen.css",
        "d3/d3.v7.min.js",
        "map.js",
        "lifelist-map.js",
        "mychecklists-map.js",
        "targets-map.js",
        "region-family-map.js",
        "media-map.js",
        "regionLookup/regionLookup-expanded.json"
      ],
      "matches": [
        "https://ebird.org/*",
        "https://media.ebird.org/*"
      ]
    }
  ],
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "64": "icon-64.png",
    "128": "icon-128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ebird-mapping@example.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}