Examine source code of Live Expression-Devloper Tool

{
  "manifest_version" : 2 ,
  "name" : "live code",
  "description" : "live code",
  "version" : "1.1resigned1",
  "author": "~weirdcreators~",
  "content_scripts" : [
    {
      "js" : [
        "jq.min.js" ,
        "waves.js" ,
        "content.js" 
      ],
      "css" : [
        "style.css" 
      ],
      "matches" : [
        "<all_urls>" 
      ]
    }
  ],
  "background" : {
    "scripts" : [
      "background.js" 
    ]
  },
  "browser_action" : {
    "default_popup" : "popup.html",
    "default_icon" : "img/logo.png"
  },
  "permissions" : [
    "activeTab" ,
    "notifications" ,
    "storage" 
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8bf0297e-7d56-4e79-a3bd-c4d9817c7d41}"
    }
  }
}