Examine source code of Scroll to top bar

{
  "manifest_version": 3,
  "name": "Scroll to top bar",
  "version": "3.0.2",
  "description": "Add scroll to top bar when hovering over a scrollbar of the page",
  "homepage_url": "https://github.com/mad1ost/scroll-to-top-bar",
  "icons": {
    "32": "icons/icon-32.png",
    "64": "icons/icon-64.png",
    "128": "icons/icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "scroll-to-top-bar.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end"
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{30281543-af8f-4cea-93a9-42232e9d9eba}",
      "strict_min_version": "109.0"
    }
  }
}