{
  "$schema": "http://json-schema.org/draft-07/schema",
  "allOf": [
    {
      "if": {
        "properties": {
          "type": {
            "const": "default"
          }
        },
        "required": ["type"]
      },
      "then": {
        "properties": {
          "layout": false,
          "conditional": false,
          "properties": false
        }
      }
    }
  ]
}