problem with cutted walls

[Anonymous]

i am working on a render of my floor plan and the walls that are cut by the plane are shown in red!
i would like them to show in black
can this be changed? where?
thanks

ps: i attach a picture showing the problem

[Erich]

This color is set in the 3D Cutting Plane dialogue box found under the view menu typically (unless you have customized it). It can be whatever you want.

[Anonymous]

thank you Erich.
immediately after i read your answer i remembered it was there.