Examine source code of TodoMVC

{
  "name": "TodoMVC",
  "description": "简洁, 易用的待办和任务管理工具, 帮助您高效完成所有的事情, 合理规划时间, 让生活更轻松！",
  "version": "1.1.5",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "alarms",
    "notifications"
  ],
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "/images/todo_list16.png",
      "32": "/images/todo_list32.png",
      "48": "/images/todo_list48.png",
      "128": "/images/todo_list128.png"
    }
  },
  "icons": {
    "16": "/images/todo_list16.png",
    "32": "/images/todo_list32.png",
    "48": "/images/todo_list48.png",
    "128": "/images/todo_list128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{6a72f3ef-2306-4043-8bef-2de8e658c635}"
    }
  }
}