diff --git a/src/zona/markdown.py b/src/zona/markdown.py
index 8990be9..38afbd6 100644
--- a/src/zona/markdown.py
+++ b/src/zona/markdown.py
@@ -54,9 +54,10 @@ class ZonaRenderer(HTMLRenderer):
         body: Any = self.render_children(element)
         return f'<a href="{href}" target="_blank">{body}</a>'
 
+    # TODO: image compression/dithering?
     @override
     def render_image(self, element: Image):
-        # get alt text from children
+        # get label text from children
         text = self.render_children(element)
         title = element.title or ""
         caption = f"<small>{text}</small>" if text else ""