Examine source code of animates

{
  "description": "Add some animation to pages",
  "manifest_version": 2,
  "name": "animate",
  "version": "1.0",
  "icons": {
    "48": "icons/animate-48.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "asset/jqueryui/jquery-ui.min.css",
        "content.css",
        "asset/aos/aos.css"
      ],
      "js": [
        "asset/jquery.js",
        "asset/jqueryui/jquery-ui.min.js",
        "asset/snow-it.min.js",
        "content.js",
        "asset/aos/aos.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "Animate",
    "default_popup": "popup/animate_popup.html"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "storage"
  ]
}