Examine source code of MaterialHub Reborn

{
  "manifest_version": 2,
  "name": "MaterialHub Reborn",
  "description": "Simple web greeter page with a clock and other features",
  "version": "0.0.2resigned1",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "*://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b1a07f83-cce9-4d31-a694-651d78d85a0a}"
    }
  }
}