Examine source code of Hacker News, Enhanced

{
  "name": "Hacker News, Enhanced",
  "short_name": "HNE",
  "version": "2.1.0.3resigned1",
  "description": "Hacker News, Enhanced.  Like HNES, but before the restyling update",
  "manifest_version": 2,
  "options_ui": {
    "page": "pages/options.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "tabs"
  ],
  "icons": {
    "16": "images/icon-16.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "css": [
        "hne-style.css"
      ],
      "js": [
        "js/firstload.js"
      ],
      "matches": [
        "http://news.ycombinator.com/*",
        "https://news.ycombinator.com/*",
        "http://news.ycombinator.net/*",
        "https://news.ycombinator.net/*",
        "http://hackerne.ws/*",
        "https://hackerne.ws/*",
        "http://news.ycombinator.org/*",
        "https://news.ycombinator.org/*"
      ]
    },
    {
      "run_at": "document_end",
      "all_frames": true,
      "css": [
        "hne-style.css"
      ],
      "js": [
        "js/lastload.js",
        "js/jquery-3.2.1.min.js",
        "js/linkify/jquery.linkify-1.0.js",
        "js/linkify/plugins/jquery.linkify-1.0-twitter.js",
        "js/hn.js"
      ],
      "matches": [
        "http://news.ycombinator.com/*",
        "https://news.ycombinator.com/*",
        "http://news.ycombinator.net/*",
        "https://news.ycombinator.net/*",
        "http://hackerne.ws/*",
        "https://hackerne.ws/*",
        "http://news.ycombinator.org/*",
        "https://news.ycombinator.org/*"
      ]
    },
    {
      "matches": [
        "http://hckrnews.com/*"
      ],
      "run_at": "document_end",
      "js": [
        "js/jquery-3.2.1.min.js",
        "js/hn.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "images/spin.gif",
    "images/tag.svg",
    "images/upvote.svg",
    "images/downvote.svg"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fcd9d9ef-be51-451b-ad6f-af7a7527cd86}"
    }
  }
}