Update utils.py

utils.py

@@ -75,12 +75,15 @@ def _load_palette(path="plotly_colorwheel.txt"):
                 if not line or line.startswith("#"):
                     continue
                 parts = [p.strip() for p in line.split(",")]
-                if len(parts) < 4:
-                    continue
                 try:
                     idx = int(parts[0])
-                    hex_color = parts[3]
-                    if hex_color.startswith("#"):
+                    # Support both formats:
+                    #   id, color, shade, hex  (4 columns, hex at index 3)
+                    #   id, color_name, hex    (3 columns, hex at index 2)
+                    hex_color = next(
+                        (p for p in reversed(parts) if p.startswith("#")), None
+                    )
+                    if hex_color:
                         entries[idx] = hex_color
                 except ValueError:
                     continue