Examine source code of Patriot Start Page

{
  "manifest_version": 2,
  "name": "Patriot Start Page",
  "version": "1.0",
  "description": "Shows a random Bill of Rights excerpt on every new tab and has a private search bar",
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "patriot-startpage@rickydana.org",
      "strict_min_version": "58.0"
    }
  }
}