Examine source code of Capital Mind Vault

{
  "manifest_version": 3,
  "name": "Capital Mind Vault",
  "version": "1.0",
  "description": "Test your global knowledge! Guess the capital city based on the provided country name.",
  "icons": {
    "48": "icon.png"
  },
  "action": {
    "default_popup": "index.html",
    "default_title": "Capital Mind Vault"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{def098fc-6dc8-463c-9551-a93f2214ee5c}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}