{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": true,
  "properties": {
    "_slug": {
      "description": "Entry identifier (URL slug / filename without extension)",
      "type": "string"
    },
    "alt": {
      "description": "Alt text (e.g. for icon)",
      "type": "string"
    },
    "author": {
      "description": "Author (e.g. for sources)",
      "type": "string"
    },
    "color": {
      "description": "Color (e.g. for buttons)",
      "type": "string"
    },
    "date": {
      "description": "Date (e.g. publication)",
      "type": "string"
    },
    "description": {
      "description": "Description",
      "type": "string"
    },
    "external": {
      "default": false,
      "description": "External link",
      "type": "boolean"
    },
    "icon": {
      "description": "Icon identifier",
      "type": "string"
    },
    "internal": {
      "description": "Internal key",
      "type": "string"
    },
    "linkName": {
      "description": "Display name (e.g. in navigation)",
      "type": "string"
    },
    "name": {
      "description": "Internal link name",
      "type": "string"
    },
    "newTab": {
      "default": false,
      "description": "Open in new tab",
      "type": "boolean"
    },
    "showText": {
      "default": true,
      "description": "Show text",
      "type": "boolean"
    },
    "source": {
      "description": "Source",
      "type": "string"
    },
    "url": {
      "description": "Target URL",
      "type": "string"
    }
  },
  "required": [
    "_slug",
    "name",
    "internal",
    "linkName",
    "url",
    "author",
    "date",
    "source"
  ],
  "type": "object"
}