Plane Display
You can set the following plane display options for part and assembly
documents:
NOTE: You must enable the Display shaded planes option to
display shaded planes.
To set the plane display:
Open a part or assembly document.
Click Tools,
Options. On the Document
Properties tab, click Plane Display.
Under Faces,
set the following options:
Back Face Color.
Displays the Color dialog box
that you use to set the back face color of planes.
Transparency.
Controls the plane transparency
(0% displays a solid face color; 100% displays no face color).
NOTE:
Edges take the same color as the front and back faces, are not transparent,
and are always displayed.
Under Intersections, set the following options:
Click OK
to accept the changes, or Cancel
to discard the changes and exit the dialog box.