Examine source code of PubNL Translator

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "author": "Thom van Mulligen",
  "default_locale": "en",
  "version": "1.1.0",
  "icons": {
    "32": "icons/icon.svg",
    "64": "icons/icon.svg"
  },
  "host_permissions": [
    "*://prod.npoplayer.nl/stream-link",
    "*://cdn.npoplayer.nl/subtitles/*",
    "*://npo.nl/*",
    "*://npokennis.nl/*",
    "*://schooltv.nl/*",
    "*://www.bvn.tv/*",
    "*://www.npodoc.nl/*",
    "*://www.zapp.nl/*",
    "*://www.zappelin.nl/*"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "storage",
    "unlimitedStorage",
    "webRequest",
    "webRequestBlocking",
    "webRequestFilterResponse",
    "notifications",
    "downloads"
  ],
  "background": {
    "page": "html/background.html",
    "type": "module"
  },
  "action": {
    "default_icon": "icons/icon.svg",
    "default_title": "__MSG_extensionName__",
    "default_popup": "html/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "pubnl-translator@ontwikseltsaar",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}