Examine source code of Text Style Converter

{
  "manifest_version": 3,
  "name": "Text Style Converter",
  "version": "1.0.0",
  "description": "Convert text into various styles (bold, italic, emoji flags, superscript, subscript, and more) with a single click.",
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "permissions": [
    "clipboardWrite"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "text-style-converter@khiemtrung",
      "strict_min_version": "109.0"
    }
  },
  "developer": {
    "name": "Khiem Trung",
    "url": "https://x.com/khnguyentrung"
  }
}