Examine source code of Auto Hide Cursor

{
  "manifest_version": 2,
  "name": "Auto Hide Cursor",
  "version": "0.9.1",
  "description": "Hides the mouse pointer/cursor after an arbitrary period of time.",
  "author": "swg <git@swg.me>",
  "homepage_url": "https://github.com/swg/auto-hide-cursor",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png",
    "300": "icon300.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "content.css"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{00a0f6b6-9388-4960-8f27-a5dc1c19611c}"
    }
  }
}