Examine source code of YT Shorts Blocker

{
  "manifest_version": 2,
  "name": "Shorts Blocker",
  "version": "1.3",
  "description": "Hide YouTube shorts and any videos under 3 mins in length.",
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "css": [
        "blocker/style.css"
      ],
      "js": [
        "blocker/desktop.js"
      ]
    },
    {
      "matches": [
        "https://m.youtube.com/*"
      ],
      "css": [
        "blocker/style.css"
      ],
      "js": [
        "blocker/mobile.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{04494d74-2263-4c6e-8cbc-5d151b778769}"
    }
  },
  "permissions": [
    "storage"
  ]
}