Examine source code of Indefinitely Hide mouse

{
  "manifest_version": 2,
  "name": "Hide mouse pointer",
  "version": "1.1.0",
  "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"
  },
  "permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d8903a28-4273-426c-be0b-f03a934c8fc9}"
    }
  }
}