If you have attached manufacturer information to elements or materials, and that information includes logos, you can choose to display the logos in the catalog, on the property pages of elements, and in the Materials dialog. The logo appears above the preview of the element or material.
To display manufacturer logos:
Select Settings
> Program Settings or click the Program Settings button on the
Settings toolbar.
In the Program Settings dialog, select the Workspace tab.
In the Tool Display area, enable the Manufacturer Logos check box.
Click OK.