Examine source code of ScrollSteadyTube

{
  "name": "ScrollSteadyTube",
  "version": "3.1.1",
  "manifest_version": 3,
  "description": "Enjoy YouTube videos that stick as you explore comments and recommendations. No more awkward transitions or cramped screens.",
  "icons": {
    "64": "images/icon-64.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{031b0ff4-00b5-464f-a281-ed272d56272f}",
      "strict_min_version": "109.0"
    }
  }
}