changing themes

app.py

@@ -260,6 +260,13 @@ with tab2:
 
 st.markdown("""
         <style>
+            .theme {
+                primaryColor="#4c673b"
+                backgroundColor="#e7f1de"
+                secondaryBackgroundColor="#ffffff"
+                textColor="#242743"
+                font="monospace"    
+            }
 
             .stTabs [data-baseweb="tab-list"] {
                 gap: 10px;
@@ -287,4 +294,4 @@ st.markdown("""
         </style>""", unsafe_allow_html=True)
 
 with open("total_groceries.txt", "w") as file:
-    file.write(str(session_state.total_groceries))
+    file.write(str(session_state.total_groceries))