Examine source code of Lightbeam Beta

{
  "manifest_version": 3,
  "name": "Lightbeam Beta",
  "version": "3.4.0",
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://lightbeam.chikl.de/",
  "icons": {
    "48": "images/lightbeam-48.png",
    "96": "images/lightbeam-96.png"
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "contextualIdentities",
    "webRequest",
    "tabs",
    "cookies",
    "storage",
    "downloads",
    "privacy"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{440b7573-ad0d-4415-bdd3-168851a4695d}",
      "strict_min_version": "120.0"
    }
  },
  "options_ui": {
    "page": "options-page.html"
  },
  "action": {
    "default_icon": "images/lightbeam-48.png",
    "default_title": "Lightbeam",
    "default_area": "navbar"
  },
  "background": {
    "scripts": [
      "ext-libs/dexie.min.js",
      "js/capture.js",
      "js/background.js"
    ],
    "type": "module"
  }
}