Examine source code of GPX creator Switzerland

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.3.4resigned1",
  "icons": {
    "48": "icons/wpt-48.png",
    "96": "icons/wpt-96.png"
  },
  "browser_action": {
    "default_icon": "icons/wpt-96.png",
    "default_title": "GPX creator",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "activeTab"
  ],
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+W"
      }
    }
  },
  "web_accessible_resources": [
    "images/snake.jpg"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.map.geo.admin.ch/*"
      ],
      "js": [
        "content_scripts/manage_waypoints.js",
        "help_scripts/jquery-3.2.1.min.js"
      ]
    }
  ],
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "{96f66184-748a-49aa-b332-b15f5826a3ee}"
    }
  }
}