gallery column to 3 rows

app.py

@@ -371,7 +371,7 @@ with gr.Blocks(css=css) as demo:
                                 value=[(item["image"], item["title"]) for item in characters],
                                 interactive = True,
                                 allow_preview=False,
-                                columns=2,
+                                columns=3,
                                 elem_id="gallery",
                                 show_share_button=False
                             )