COLOUR THEORY uses a multitude of white projector light [all possible variations: 35mm, 16mm, R8 & S8mm, 35mm slide] with a spectrum [RYB/OGV] of hand-manipulated coloured gels, moving apart & over-lapping in layers, to create a blended mixture of myriad shades, performed live from the booth as a sequence of variations from a colour-coded score.