Examine source code of Anti Short

{
  "manifest_version": 3,
  "name": "Anti Short",
  "version": "1.1",
  "description": "The extension for removing YouTube Shorts and irrelevant 'most relevant' videos from your subscription feed and menu.",
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "109.0",
      "id": "ben.f.cooper@gmail.com"
    }
  },
  "host_permissions": [
    "https://www.youtube.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "popup.js"
      ]
    }
  ],
  "action": {
    "default_icon": "icon.png"
  }
}