Examine source code of Cyber Tunnel

{
  "name": "Cyber Tunnel",
  "description": "A futuristic and high-tech interface",
  "manifest_version": 2,
  "version": "1.0",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{183d5c80-7d4f-413f-aed5-4cf9a9a4eb26}"
    }
  }
}