Allow for 3px bboxes, bbox thickness reduced

demo_gradio.py

@@ -398,6 +398,8 @@ GeCo2 is a few-shot, category-agnostic detection counter. With only a small numb
             enable_keyboard_shortcuts=True,
             interactive=True,
             show_label=False,
+            box_min_size=3,
+            box_thickness=1,
         )
         image_output = gr.Image(type="pil")