Examine source code of New Tab with Quotes

{
  "manifest_version": 2,
  "name": "QuoteTab",
  "version": "0.2.4resigned1",
  "description": "Adds quote to new tab page",
  "permissions": [
    "topSites",
    "<all_urls>",
    "storage"
  ],
  "icons": {
    "48": "icons/48.png",
    "96": "icons/96.png"
  },
  "chrome_url_overrides": {
    "newtab": "dayquote.html"
  },
  "applications": {
    "gecko": {
      "strict_min_version": "54.0a1",
      "id": "{0d4b061f-8005-4598-9dc5-3486cf042bd7}"
    }
  }
}