diff --git a/src/bonsai/bonsai/bim/module/style/operator.py b/src/bonsai/bonsai/bim/module/style/operator.py
index 766436a1a4..4672b806f5 100644
--- a/src/bonsai/bonsai/bim/module/style/operator.py
+++ b/src/bonsai/bonsai/bim/module/style/operator.py
@@ -744,7 +744,7 @@ class EnableEditingSurfaceStyle(bpy.types.Operator):
         if self.ifc_class == "IfcSurfaceStyleLighting":
 
             def callback(attribute_name: str, _: object, data: dict[str, Any]) -> None:
-                assert attributes
+                assert attributes is not None
                 color = attributes.add()
                 assert isinstance(color, ColourRgb)
                 color.name = attribute_name
diff --git a/src/bonsai/bonsai/bim/module/style/prop.py b/src/bonsai/bonsai/bim/module/style/prop.py
index a4cfb2cb9e..7dfcad4f07 100644
--- a/src/bonsai/bonsai/bim/module/style/prop.py
+++ b/src/bonsai/bonsai/bim/module/style/prop.py
@@ -185,6 +185,13 @@ class ColourRgb(PropertyGroup):
     # to fit blender.bim.helper.draw_attribute
     is_optional = False
     special_type = ""
+    data_type = ""
+    ifc_class = ""
+    use_explorer_ui = False
+
+    @property
+    def display_name(self):
+        return self.name
 
     def get_value_name(self, *args, **kwargs):
         return "color_value"
diff --git a/src/bonsai/bonsai/bim/module/style/ui.py b/src/bonsai/bonsai/bim/module/style/ui.py
index 9e37a01039..7b27d1f324 100644
--- a/src/bonsai/bonsai/bim/module/style/ui.py
+++ b/src/bonsai/bonsai/bim/module/style/ui.py
@@ -272,10 +272,17 @@ class BIM_PT_styles(Panel):
         bonsai.bim.helper.draw_attributes(self.props.external_style_attributes, self.layout, enable_search=True)
 
     def draw_refraction_surface_style(self):
+        self.layout.label(
+            text="Refraction values are IFC-only and do not affect Blender surface appearance",
+            icon="ERROR",
+        )
         bonsai.bim.helper.draw_attributes(self.props.refraction_style_attributes, self.layout, enable_search=True)
-        row = self.layout.row(align=True)
 
     def draw_lighting_surface_style(self):
+        self.layout.label(
+            text="Lighting values are IFC-only and do not affect Blender surface appearance",
+            icon="ERROR",
+        )
         bonsai.bim.helper.draw_attributes(self.props.lighting_style_colours, self.layout)
 
     def draw_edit_ui(self, edit_label: str):