Examine source code of WatchTube

{
  "manifest_version": 3,
  "name": "WatchTube",
  "version": "1.0.0",
  "description": "Enhances YouTube’s homepage by modifying its layout and recommendations. Adds Watch Later videos to the homepage (with reshuffling), surfaces random unwatched videos from your subscriptions, and allows hiding YouTube Shorts.",
  "icons": {
    "48": "icons/logo48.png",
    "96": "icons/logo96.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://www.youtube.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "watchtube-addon@tushonochki.dev",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": "icons/logo48.png",
    "default_title": "WatchTube"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "content/content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "content/*"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ]
}