Examine source code of yt-dlp-button

{
  "manifest_version": 3,
  "name": "yt-dlp-button",
  "version": "0.4.0",
  "description": "The button that generates yt-dlp command.",
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "edge": {},
    "gecko": {
      "id": "yt-dlp-button@zelenov",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "icons": {
    "16": "icons/icon16x16.png",
    "32": "icons/icon32x32.png",
    "48": "icons/icon48x48.png",
    "128": "icons/icon128x128.png"
  },
  "options_ui": {
    "page": "settings/panel.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/watch*"
      ],
      "css": [
        "balloon/balloon.css",
        "sites/youtube/button/button.css"
      ],
      "js": [
        "ytdlp-settings.js",
        "ytdlp-command.js",
        "balloon/balloon-template.js",
        "balloon/balloon.js",
        "sites/youtube/button/button-template.js",
        "sites/youtube/button/button.js",
        "sites/youtube/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "sites/youtube/button/*.svg",
        "balloon/copied.svg"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ]
}