egVGAOff()

         Uninstalls the Color Subsystem

    Syntax:

         egVGAOff() -> Nil

    Description:

         A call to egBGAOff() must be realized before exiting the program
         or changing video modes.
         After this call, all the defined colour parametes are lost.

    Return:

         Nothing.

    Example:

        If egVGAOn()
          ? "System installed"
          ? "Deinstalling..."
          egVGAOff()
        EndIf