ffs, i should have committed wayyy earlier

registry/schema-org/ImageObject.json

@@ -0,0 +1,38 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://schema.org/ImageObject",
+  "title": "ImageObject",
+  "description": "Minimal subset of schema.org/ImageObject for use in Recipe image property",
+  "type": "object",
+  "required": [
+    "@type",
+    "url"
+  ],
+  "properties": {
+    "@type": {
+      "const": "ImageObject"
+    },
+    "url": {
+      "$ref": "url.json"
+    },
+    "caption": {
+      "type": "string",
+      "description": "A caption for the image."
+    },
+    "width": {
+      "type": [
+        "integer",
+        "string"
+      ],
+      "description": "Width of the image in pixels or as a string with unit."
+    },
+    "height": {
+      "type": [
+        "integer",
+        "string"
+      ],
+      "description": "Height of the image in pixels or as a string with unit."
+    }
+  },
+  "additionalProperties": true
+}