Examine source code of Mangatown Reader

{
  "manifest_version": 2,
  "name": "Mangatown Reader",
  "version": "1.0.3resigned1",
  "description": "An add-on to make reading manga on mangatown more pleasant.",
  "content_scripts": [
    {
      "matches": [
        "http://www.mangatown.com/manga/*/c*"
      ],
      "css": [
        "styles.css"
      ],
      "js": [
        "./js/lib.js",
        "./js/reader.js"
      ],
      "run_at": "document_start"
    }
  ],
  "icons": {
    "16": "icon-16.ico",
    "48": "icon-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d6d82ef1-1ee6-4ee3-a073-c750ed145b1e}"
    }
  }
}