Examine source code of Link Previewer

{
  "name": "Link Previewer",
  "description": "Quickly preview the content of a link by just hovering it.",
  "version": "2.8",
  "author": "Kevin Karl Leaño",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.min.js"
    ]
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "/img/icons/48x48.png",
      "96": "/img/icons/96x96.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4ae4fb96-00c1-4e86-9d59-8acf3927cbed}"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "css": [
        "/lib/jquery-ui/jquery-ui.min.css",
        "/src/css/main.min.css"
      ],
      "js": [
        "/lib/html2canvas/html2canvas.min.js",
        "/lib/jquery/jquery.min.js",
        "/lib/jquery-ui/jquery-ui.min.js",
        "/src/js/main.min.js"
      ]
    }
  ],
  "icons": {
    "48": "/img/icons/48x48.png",
    "96": "/img/icons/96x96.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "/img/icons/Close.png",
    "/img/icons/Search.png",
    "/img/icons/Refresh.png",
    "/img/icons/Copy-URL.png",
    "/img/icons/Copy-Content.png",
    "/img/icons/Pin.png",
    "/img/icons/Unpin.png",
    "/img/icons/Camera.png",
    "/img/icons/Delete.png",
    "/resources/messages/error-connection-message.html",
    "/resources/messages/unknown-connection-message.html",
    "/resources/utilities/link-previewer-box.html"
  ]
}