Examine source code of Refined Stack Overflow

{
  "manifest_version": 2,
  "name": "refined stack overflow",
  "description": "show answers you upvoted / your answers first",
  "version": "1.2.0",
  "content_scripts": [
    {
      "matches": [
        "*://*.stackoverflow.com/*",
        "*://askubuntu.com/*"
      ],
      "js": [
        "script.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "icons": {
    "48": "icon.png",
    "96": "icon@2x.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{74cea24b-2430-4ead-aa34-298576e1a801}"
    }
  }
}