Hi Robert
It is by me!
A few of my analogue controllers have colour sequencing due to their colour keyboard scanning technique. This allows a selection of colours to be locked into memory and then sequenced with a variable clock speed. If this is used with the figure generator running through an x/y sample and hold board (with its own variable clock) which I call a "Digitizer" you end up with a colour chase superimposed on a figure section which chases round whatever lissajous figure you have set up.
(This can be just a straight line but that's boring).
The effect is similar to a tape being waved around in the air but with the colours chasing along the tape trail.
Obviously best after a few beers
Colour is the English word for that which our transatlantic cousins call color!
Confusing
isn't it!
Cheers