Examine source code of Youtube Tabs

{
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAlxvx6DqrufpOpNX4teK1W0snlUVxmgyUFPJ0M57WLJIC9YiqtopvWurr6Yn8GR5V1cn9sYEEGmjBhBS8aQpyQ8BwXvUt7h9/xQFzkpoJGH3GphcjRfp41vSVTwFnLQ16Gwg93/URiwJAud1IOEBgz8u8G1n0Nn+gN15R0VXIkFvbAdxQC2E/sSbiC8PfmZw7dSl5aEfvtWvSydD9cGUDgmf4+pElw78iY8az1WVCrsUQZlQ4cKKBDu49b9Ytfl61zIAxiocynvw06ke15Kzjn5B9E/q0VqdhVLUvKxpDeeByapLbpoLHJrgd+f7E/MJU54WZGP0I/tWBDaWZaiuvlwIDAQAB",
  "name": "Youtube Tabs - Subscription Organization Tool",
  "description": "Tidy up your Youtube subscription list with tab organization features",
  "version": "2.0.12",
  "manifest_version": 3,
  "icons": {
    "48": "icon.png",
    "128": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "iro.min.js",
        "youtube-tabs.js"
      ],
      "css": [
        "tabs.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "help.html"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8d7a3d6c-a637-4e34-8592-6c5af28834a7}"
    }
  }
}