Examine source code of Page Flip Animation

{
  "manifest_version": 2,
  "name": "Page Flip Animation",
  "version": "1.0",
  "description": "Hiệu ứng lật trang giống sách giấy khi chuyển trang.",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c3f287e6-339f-4474-a03e-c0a441b9eefa}"
    }
  }
}