Examine source code of Skerax

{
  "name": "Skerax",
  "description": "Viens voir Skerax en Live",
  "version": "2.1",
  "manifest_version": 2,
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": "img/icon-off-64.png"
  },
  "icons": {
    "64": "img/icon-on-64.png",
    "128": "img/icon-on-128.png"
  },
  "background": {
    "scripts": [
      "js/jquery.js",
      "js/config.js",
      "js/functions.js",
      "js/startJS.js",
      "js/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "tabs",
    "storage",
    "notifications"
  ]
}