To Specify the Layer, Color, and Linetype of an AEC Polygon Style
Note: Materials cannot be assigned to AEC polygons. You can also use the Display tab of the Properties palette to change the display property settings for a selected object display component in the current display representation.
Note: Alternatively, you can select an AEC polygon in the drawing, and click AEC Polygon ribbon contextual tabGeneral panelEdit Style drop-downAEC Polygon Styles.
Select the style you want to edit.
Click the Display Properties tab.
Select the Model display representation, and select Style Override.
If necessary, click .
Click the Layer/Color/Linetype tab.
Select the component to change, and select a different setting for the property.