Examine source code of Gfycat Resurrected

{
  "manifest_version": 3,
  "name": "Gfycat Resurrected",
  "version": "1.0",
  "description": "Redirect gfycat urls to Web Archive versions.",
  "author": "boiledpotato23",
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "permissions": [
    "webNavigation",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "gfycat-resurrected@boiledpotato23",
      "strict_min_version": "129.0"
    },
    "gecko_android": {
      "id": "gfycat-resurrected@boiledpotato23",
      "strict_min_version": "129.0"
    }
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "https://web.archive.org/web/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "worker.js"
    ],
    "service_worker": "worker.js"
  },
  "action": {
    "default_title": "Gfycat Resurrected",
    "default_popup": "popup/popup.html",
    "default_icon": "images/icon.png"
  }
}