Chromatics : or, an essay on the analogy and harmony of colours
George Field's Chromatics, printed in London in 1817 for the author and sold through booksellers, is a treatise on colour theory aimed at painters, scientists and readers of the period. Its plates show a six-pointed star built from triangles filled with blended spectral hues, set in a ring with radiating lines behind it, with a black disc in one version. A designer could take from them the radial starburst layout and the way coloured triangles overlap and fade into one another as a study of colour harmony.
