When people walk in, the light is austere.  White light in a black room.  As people move through,
the colors come on.  A black space and white light morphs into color.

                                                                 Corinne Heath

We do have moving lights.  We use them for rock and roll music concerts.  They come with different
patterns/colors and have the capability to change and to move.

                                                                  John Frautschy