{
  "type": "select",
  "key": "app_theme_default",
  "constant": "APP_THEME_DEFAULT",
  "description": "Default theme (light or dark)",
  "required": true,
  "placeholder": "dark",
  "validation": "required|string|max:255",
  "options": [
    "light",
    "dark"
  ],
  "category": "app",
  "sensitive": false
}