Display background colour

To: visad-list@xxxxxxxxxxxxx
Subject: Display background colour
From: Ugo Taddei <p6taug@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 2 Feb 1999 11:54:04 +0100 (MET)

Hi,

How do I change the display background colour (from the standard blck, to, say, 
blue)?

Ugo