Examine source code of YouTube NonStop Watcher

{
  "manifest_version": 3,
  "name": "YouTube NonStop Watcher",
  "version": "1.0",
  "description": "Automatically clicks 'Yes' to the 'Are you still watching?' prompt on YouTube.",
  "permissions": [],
  "host_permissions": [
    "*://*.youtube.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "youtube-nonstop-watcher@example.com",
      "strict_min_version": "109.0"
    }
  }
}