Examine source code of Redditify

{
  "manifest_version": 2,
  "name": "Redditify",
  "version": "1.0",
  "description": "Converts all reddit pages to the old forum style of Reddit.",
  "icons": {
    "48": "icons/redditify.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.reddit.com/*"
      ],
      "js": [
        "redditify.js"
      ]
    }
  ]
}