Update app.py

app.py

@@ -15,7 +15,7 @@ from flask import Flask
 
 server = Flask(__name__)
 
-# Create a customized version of the plotly_dark theme with a modified background color
+# Create a customized version of the plotly_dark theme with a modified background color.
 custom_plotly_dark_theme = {
     "layout": {
         "paper_bgcolor": "#1E1E1E",  # Update the paper background color