Examine source code of ATR Calculator

{
  "manifest_version": 3,
  "name": "ATR Calculator",
  "version": "1.1.0",
  "description": "Calculate weekly ATR from your attendance portal. Finds the minimum ATR days needed to cover your shortfall.",
  "permissions": [
    "activeTab",
    "scripting",
    "storage"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/favicon-16x16.png",
      "32": "icons/favicon-32x32.png",
      "192": "icons/android-chrome-192x192.png"
    }
  },
  "icons": {
    "16": "icons/favicon-16x16.png",
    "32": "icons/favicon-32x32.png",
    "192": "icons/android-chrome-192x192.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "atr-calculator@joravkumar",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}