Examine source code of Anti Shorts

{
  "manifest_version": 2,
  "name": "Anti Shorts",
  "version": "1",
  "description": "We do not want shorts",
  "content_scripts": [
    {
      "css": [
        "styles.css"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{bd897b97-462e-408c-9c85-69d6fabdc1c8}"
    }
  }
}