Examine source code of Fajr Calendar

{
  "manifest_version": 3,
  "name": "Fajr Calendar",
  "icons": {
    "32": "logos/white/fajr32.png",
    "64": "logos/white/fajr64.png",
    "128": "logos/white/fajr128.png"
  },
  "version": "1.1.6",
  "description": "Fajr Extension - Your Reliable Tool for Accurate Prayer Times",
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "logos/white/fajr32.png",
      "64": "logos/white/fajr64.png",
      "128": "logos/white/fajr128.png"
    }
  },
  "permissions": [
    "storage",
    "alarms",
    "notifications",
    "geolocation",
    "cookies"
  ],
  "background": {
    "scripts": [
      "src/background/index.js"
    ],
    "type": "module"
  },
  "host_permissions": [
    "https://fajrcalendar.com:8001/*",
    "https://fajrcalendar.com/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9afde88a-858c-4468-be4d-b167d2780d6f}"
    }
  }
}