Examine source code of Google Maps Shortcuts

{
  "manifest_version": 3,
  "version": "2.0.6",
  "version_name": "2.0.6",
  "name": "Google Maps Shortcuts",
  "description": "Create keyboard shortcuts to make browsing Google Maps more fluid.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://google.com/maps*",
    "*://*.google.com/maps*"
  ],
  "action": {
    "default_icon": "icons/icon64.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://google.com/maps*",
        "*://www.google.com/maps*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "icons": {
    "32": "icons/icon32.png",
    "64": "icons/icon64.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "googlemapsshortcuts@yusacetin.org",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}