Heinrich Schonfeld occupies the comfortable middle of the value scale, avoiding both extremes to hold the eye in a sustained middle grey. Cool tones set the register here - the blues and greens easily outweigh any warm accents. Chroma is kept low across all colours, producing the soft, enveloping quality that characterises tonal painting. At 10.6%, #20130A carries the palette's sharpest chromatic charge: an accent that earns its place precisely because it is withheld. At 63 units of value range, the palette has the tonal breadth to sustain complex spatial readings. The palette has the character of outdoor light: cool, mid-bright, with colour rendered faithfully rather than expressively. This is palette 4 of Heinrich Schonfeld's sequence - a single chapter in a chromatic story told across many works.