Examine source code of Random User Agent

{
  "description": "Random User Agent",
  "manifest_version": 2,
  "name": "Random User Agent",
  "version": "1.30",
  "icons": {
    "48": "icons/true.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "randomagent@emailplace.org",
      "strict_min_version": "57.0"
    }
  },
  "permissions": [
    "webRequest",
    "storage",
    "webRequestBlocking",
    "webNavigation",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "res/jquery-3.5.1.min.js",
      "background.js",
      "options/options.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/true.png",
    "default_title": "Random User Agent"
  },
  "options_ui": {
    "page": "options/options.html"
  }
}