Examine source code of Little Alchemy 2

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  "name": "Little Alchemy 2",
  "description": "The contemporary update to Little Alchemy 2 has delivered new mixtures.",
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  "permissions": [
    "tabs",
    "bookmarks"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Little Alchemy 2"
  }
}