Examine source code of Cadeau clic

{
  "name": "Cadeau clic",
  "version": "0.4",
  "description": "Cadeau clic",
  "permissions": [
    "tabs",
    "*://*.cadeauclic.com/*",
    "*://cadeauclic.com/*",
    "storage"
  ],
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.cadeauclic.com/*",
        "*://cadeauclic.com/*"
      ],
      "js": [
        "cs.js"
      ],
      "all_frames": true
    }
  ],
  "icons": {
    "16": "img/icon16.png",
    "48": "img/icon48.png",
    "128": "img/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "img/icon16.png",
      "24": "img/icon24.png",
      "32": "img/icon32.png"
    },
    "default_popup": "popup.html"
  },
  "manifest_version": 2
}