Examine source code of Apple Maps Redirect

{
  "manifest_version": 2,
  "name": "Apple Maps Redirect for Google Maps Links",
  "version": "1.1.0",
  "description": "Automatically forwards Google Maps links and navigations to Apple Maps.",
  "icons": {
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png",
    "512": "icons/icon-512.png"
  },
  "permissions": [
    "<all_urls>",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking"
  ],
  "background": {
    "scripts": [
      "shared/redirect.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "shared/redirect.js",
        "shared/google-page-context.js",
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    "shared/redirect.js",
    "shared/google-page-context.js",
    "page-hook.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "apple-maps-redirect@example.local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}