Examine source code of Hide mouse pointer

{
  "manifest_version": 3,
  "name": "Hide mouse pointer",
  "version": "2.0.1",
  "description": "Hides the mouse pointer/cursor after scrolling.",
  "author": "Kenneth Sundqvist <kenneth@kesu.se> (kesu.se)",
  "homepage_url": "https://github.com/KennethSundqvist/hide-mouse-pointer-browser-extension",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png",
    "300": "icon300.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0ca556b9-6294-4b57-adeb-13b8ac682ecd}"
    }
  }
}