Examine source code of Osint Sync

{
  "manifest_version": 2,
  "name": "Osint Sync",
  "version": "1.2",
  "description": "Professional OSINT extension for searching usernames & email & ip & number across multiple platforms",
  "author": "https://github.com/mixaoc",
  "icons": {
    "48": "icon.png",
    "96": "icon.png"
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "storage",
    "https://en.gravatar.com/*",
    "https://playerdb.co/*",
    "https://api.github.com/*",
    "https://www.reddit.com/*",
    "https://api.ivr.fi/*",
    "https://mixaoc.com/*",
    "https://ipapi.co/*",
    "https://api.ipify.org/*",
    "https://instagram.com/*",
    "https://twitter.com/*",
    "https://facebook.com/*",
    "https://youtube.com/*",
    "https://tiktok.com/*",
    "http://147.185.221.31:55641/*",
    "http://147.185.221.31:44769/*",
    "https://www.google.com/s2/favicons/*",
    "https://whatsapp-db.checkleaked.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png",
    "default_title": "OSINT SYNC"
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "admin@mixaoc.com"
    }
  }
}