Examine source code of youtube-deshorts

{
  "manifest_version": 2,
  "name": "youtube-deshorts",
  "version": "1.1",
  "description": "Remove shorts button from youtube.com.",
  "icons": {
    "32": "icons/32x32.png",
    "48": "icons/48x48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "deshorts.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{48cfeef9-48ed-4bb6-80e9-39aa90eea9bd}"
    }
  }
}