Update app.py

app.py

@@ -177,7 +177,8 @@ def create_top_discriminatory_domains_chart(df):
 # Function for Channel-wise Sentiment Over Time Chart
 def create_sentiment_distribution_by_channel_chart(df):
     sentiment_by_channel = df.groupby(['Channel', 'Sentiment']).size().reset_index(name='counts')
-    fig = px.bar(sentiment_by_channel, x='Channel', y='counts', color='Sentiment', title="Sentiment Distribution by Channel", barmode='group')
+    color_map = {'Positive': 'blue', 'Neutral': 'lightblue', 'Negative': 'red'}
+    fig = px.bar(sentiment_by_channel, x='Channel', y='counts', color='Sentiment', title="Sentiment Distribution by Channel", barmode='group', color_discrete_map=color_map)
     fig.update_layout(margin=dict(l=20, r=20, t=50, b=20), xaxis_title="Channel", yaxis_title="Counts", font=dict(size=10), title_x=0.5)
     return fig