Examine source code of Catch-all Alias Generator

{
  "manifest_version": 3,
  "name": "Catch-all Alias Generator",
  "version": "1.5.0",
  "description": "Generates a unique catch-all email alias for the active website and copies it to the clipboard.",
  "permissions": [
    "storage",
    "tabs",
    "clipboardWrite"
  ],
  "action": {
    "default_title": "Generate email alias",
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "64": "icons/icon-64.png",
      "96": "icons/icon-96.png",
      "128": "icons/icon-128.png"
    }
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "catchall-alias-generator@local.extension",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  }
}