Examine source code of YouTube Shorts Speed

{
  "manifest_version": 2,
  "name": "YouTube Shorts Speed",
  "description": "Control playback speed on YouTube Shorts",
  "version": "0.3",
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "controls-16.png",
    "48": "controls-48.png",
    "64": "controls-64.png",
    "128": "controls-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c7c11651-4395-4cc6-92e0-75fb3ecbdd7b}"
    }
  }
}