Examine source code of Cyber Cookie

{
  "action": {
    "default_icon": "/pictures/cookie.png",
    "default_popup": "index.html",
    "default_title": "CyberCookie"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "description": "CyberCookie, an extension reinventing Cookie Clicker. Made With 💗 by Endermythex",
  "icons": {
    "16": "/pictures/cookie.png",
    "48": "/pictures/cookie.png",
    "128": "/pictures/cookie.png"
  },
  "manifest_version": 3,
  "name": "CyberCookie",
  "options_page": "settings.html",
  "permissions": [
    "activeTab"
  ],
  "version": "1.6.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "endermythex@cybercookie.party"
    }
  }
}