Examine source code of Code-Track

{
  "manifest_version": 2,
  "name": "Custom Tab",
  "author": "Nullv0id",
  "version": "1.0.1",
  "description": "Replace new tab screen with awesome competitive related content",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "permissions": [
    "storage"
  ],
  "content_security_policy": "script-src 'self' 'sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm' 'sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN' 'sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q' 'sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl' ; object-src 'self'",
  "icons": {
    "48": "icon.png",
    "96": "icon.png"
  }
}