Examine source code of Torry

{
  "version": "0.1",
  "applications": {
    "gecko": {
      "id": "torrysearch@gmail.com"
    }
  },
  "manifest_version": 2,
  "name": "Torry",
  "short_name": "Torry",
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Torry",
      "keyword": "Torry",
      "search_url": "https://www.torry.io/search/?a=b&q={searchTerms}",
      "favicon_url": "https://www.torry.io/img/torry_head.png",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  "description": "Torry - Search Anonymously with Tor",
  "icons": {
    "16": "img/16.png",
    "32": "img/32.png",
    "64": "img/64.png",
    "128": "img/128.png"
  },
  "background": {
    "scripts": [
      "bg.js"
    ],
    "persistent": true
  }
}