Update app.py

app.py

@@ -532,7 +532,7 @@ def predict(
     # --- Draw only the new contours (final_polygons_inch) on the clean output image ---
     draw_polygons_inch(final_polygons_inch, output_img, scaling_factor, processed_size[0], color=(0,0,255), thickness=2)
     # Also prepare an "Outlines" image based on a blank canvas for clarity.
-    new_outlines = np.zeros_like(output_img) * 255
+    new_outlines = np.ones_like(output_img) * 255
     draw_polygons_inch(final_polygons_inch, new_outlines, scaling_factor, processed_size[0], color=(0,0,255), thickness=2)
     if annotation_text.strip():
         text_px = int(text_x / scaling_factor)