Examine source code of YouTube Grid Layout

{
  "manifest_version": 2,
  "name": "YouTube Grid Layout",
  "description": "This extension makes YouTube display in grid layout, and you will be able to access and find the videos which you want to watch much more easily.",
  "version": "1.1.2",
  "icons": {
    "16": "./common/icon/img/icon16.png",
    "48": "./common/icon/img/icon48.png",
    "128": "./common/icon/img/icon128.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "content_scripts": [
    {
      "js": [
        "./js/browser-polyfill.js",
        "./common/js/content.js"
      ],
      "css": [
        "./common/css/content_playlist.css",
        "./common/css/content_home.css",
        "./common/css/content_search.css"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "./common/icon/img/icon.png",
    "default_popup": "./Popup/Popup.html",
    "default_title": "YouTube Grid Layout"
  },
  "background": {
    "scripts": [
      "./js/browser-polyfill.js",
      "./common/js/background.js"
    ]
  }
}