Examine source code of Torrent Magnetizer

{
  "author": "Marco Castelluccio",
  "manifest_version": 2,
  "name": "Torrent Magnetizer",
  "version": "0.0.3",
  "icons": {
    "48": "magnet48.png",
    "96": "magnet96.png",
    "128": "magnet.png"
  },
  "description": "Automatically add magnet links to torrentz2 search results.",
  "content_scripts": [
    {
      "matches": [
        "*://torrentz2.eu/*",
        "*://torrentz2.is/*"
      ],
      "js": [
        "torrentz2.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "magnet.png"
  ],
  "permissions": [],
  "homepage_url": "https://github.com/marco-c/magnetizer-addon"
}