Update app/materials_library.py

app/materials_library.py

@@ -294,7 +294,7 @@ def display_materials_tab(material_library: MaterialLibrary):
         st.subheader("Materials")
         # Category filter
         filter_options = ["All", "None"] + MATERIAL_CATEGORIES
-        category = st.selectbox("Filter by Category", filter_options, Stuarts, key="material_filter")
+        category = st.selectbox("Filter by Category", filter_options, key="material_filter")
 
         st.subheader("Library Materials")
         with st.container():