Examine source code of Esfand Updates

{
  "name": "Esfand Updates",
  "description": "Receive updates letting you know when Esfand goes live or changes games.",
  "version": "1.5.2",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "notifications",
    "alarms",
    "https://*.otkdata.com/*"
  ],
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "/images/esfand_icon16.png",
      "32": "/images/esfand_icon32.png",
      "48": "/images/esfand_icon48.png",
      "128": "/images/esfand_icon128.png"
    }
  },
  "icons": {
    "16": "/images/esfand_icon16.png",
    "32": "/images/esfand_icon32.png",
    "48": "/images/esfand_icon48.png",
    "128": "/images/esfand_icon128.png"
  },
  "options_ui": {
    "open_in_tab": false,
    "page": "options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{15b76ea0-2281-430b-be81-6dc2f844978b}"
    }
  }
}