GRAV — Groupe de Recherche d'Art Visuel — was the six-member Paris collective that treated art as systematic visual research. Founded in 1960 by Julio Le Parc, François Morellet, and four others in the orbit of Galerie Denise René, they rejected individual authorship and built participatory optical environments — motorized light labyrinths, moiré-pattern walls, concentric-square fields — where the viewer's vertigo was the work itself.

This design system captures their machine-precise visual language: pure black-and-white optical contrast, mathematical grid rotations, vector-sharp line patterns, and the rare controlled accent of Le Parc red or Morellet yellow. Every element is numbered, diagrammatic, and rigorously flat. The pattern is the interface.