Update app.py

app.py

@@ -16,6 +16,7 @@ class MPGPoster(Base):
         # Manually define shades for each color
         # This is an example, adjust the shades according to your needs
         shades = {
+            "c50": hex_color,
             "c100": hex_color,
             "c200": hex_color,  # Slightly lighter or darker
             "c300": hex_color,