Update app.py

app.py

@@ -13,6 +13,17 @@ theme = gr.themes.Soft(
     background_fill_primary = 'primary_600'
 )
 
+custom_css = """
+:root { /* This applies to the light mode */
+    --background-fill-primary: #FFB6C1 !important; /* Light pink */
+}
+
+.dark { /* This applies to the dark mode */
+    --background-fill-primary: #FF69B4 !important; /* Hot pink */
+}
+"""
+
+
 with open("knowledge.txt" , "r", encoding="utf-8") as f:
     knowledge_base = f.read()