Update app.py

app.py

@@ -32,7 +32,7 @@ def add_sticky_header_css():
             bottom: 0; 
             right: 0; 
             z-index: 1000; 
-            background-color: yellow; /* #90EE90 */ 
+            background-color: purple; 
             padding: 5px; 
             border-top: 1px solid #f0f0f0; 
             width: 100%;