Examine source code of QR Code Tools

{
  "manifest_version": 2,
  "name": "QR Code Tools",
  "version": "1.4.7",
  "description": "Générateur de QR (URL, texte, Wi‑Fi, contact vCard, WhatsApp, GPS, Bitcoin…) — tout en local. Style générateur web, sans compte.",
  "homepage_url": "https://t.me/werlist99",
  "permissions": [
    "activeTab",
    "storage",
    "clipboardWrite",
    "tabs"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "QR Code Tools — générateur local",
    "default_icon": {
      "16": "icons/icon16.svg",
      "48": "icons/icon48.svg",
      "128": "icons/icon128.svg"
    }
  },
  "icons": {
    "16": "icons/icon16.svg",
    "48": "icons/icon48.svg",
    "128": "icons/icon128.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@werlist99-qr-code-tools",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "developer": {
    "name": "werlist99",
    "url": "https://t.me/werlist99"
  }
}