Update app.py

app.py

@@ -34,7 +34,7 @@ def plot_data(data):
 
     # Adding Bollinger Bands traces
     fig.add_trace(go.Scatter(x=data.index, y=data['Upper Band'], name='Upper Bollinger Band', line=dict(color='red', dash='dash')))
-    fig.add_trace(go.Scatter(x=data.index, y=data['Middle Band'], name='Middle Bollinger Band', line=dict(color='black', dash='dash')))
+    fig.add_trace(go.Scatter(x=data.index, y=data['Middle Band'], name='Middle Bollinger Band', line=dict(color='white', dash='dash')))
     fig.add_trace(go.Scatter(x=data.index, y=data['Lower Band'], name='Lower Bollinger Band', line=dict(color='red', dash='dash')))
 
     # Adding Moving Averages traces