To come back to abstraction, I have a feeling that colour varies in my work between two aspects: the colour-object that comes from the sensation of an object, in this case the film strip, and the opening. This colour-object permits the transporting of objects into space, to explore the space of the screen in the theatre; this is what allowed me to develop Liminal Minimal (1977) by enlarging the space of projection with two projectors and, taking into account that the vertical strips evolve on a black background comparable to the darkness of the theatre, I was able explore the whole space of the projection with the coloured strip