Examine source code of Quran Radio

{
  "manifest_version": 3,
  "name": "Quran Radio",
  "version": "1.2",
  "description": "بث مباشر لإذاعة القرآن الكريم بصوت نخبة من القراء",
  "permissions": [
    "storage",
    "offscreen"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "Radio-Quran@my-extension.com"
    }
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": "icon128.png"
  },
  "icons": {
    "16": "icon128.png",
    "48": "icon128.png",
    "128": "icon128.png"
  }
}