{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": true,
  "properties": {
    "_slug": {
      "description": "Entry identifier (URL slug / filename without extension)",
      "type": "string"
    },
    "description": {
      "description": "Alt text / description",
      "type": "string"
    },
    "src": {
      "description": "Image URL",
      "type": "string"
    }
  },
  "required": [
    "_slug",
    "src"
  ],
  "type": "object"
}