Update app.py

app.py

@@ -34,7 +34,7 @@ def add_heatmap_layer(map_obj, data, column_name, colormap_name, radius=15):
             radius=radius,
             fill=True,
             fill_color=cmap(row[column_name]),
-            fill_opacity=0.7,
+            fill_opacity=0.5,
             weight=0,
             popup=f"{column_name}: {row[column_name]:.2f}"  # Fix here
         ).add_to(heat_layer)