change sidebar text color to purple

app.py

@@ -19,7 +19,7 @@ sample_img = {
 def app():
     with st.sidebar:
         st.image("resources/AIB_logo.png")
-        st.markdown("<h1 style='text-align: center; '>AI-Builders 3: Arcane Whales</h1>", unsafe_allow_html=True)
+        st.markdown("<h1 style='text-align: center; color: purple ;'>AI-Builders 3: Arcane Whales</h1>", unsafe_allow_html=True)
         st.write("This project was creted by Picha Jetsadapattarakul under AI-Builders program.")
 
     st.title("Diabetic Foot Ulcers Classification by using planter foot Thermogram")