{
  "$id": "image-comp.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$ref":  "file-comp.schema.json",
  "required": ["type", "sourceUrl", "sourceType", "altText"],
  "properties": {
    "type": {
      "type": "string",
      "description": "Should always be set to image",
      "const": "image"
    },
    "altText": {
      "type": "string",
      "description": "The alt text for the image file. Required if type is image"
    }
  }
}