Giovanni Battista Piazzetta is low-key throughout, a quality associated with Nocturnal Bister - deep shadows dominate the composition. Giovanni Battista Piazzetta tilts toward cool - blues and silver-greys carry the structural weight. Every colour is desaturated; the palette proceeds through near-neutrals and gently-coloured greys. #303028 at 31.6% of the palette: an overwhelming presence that pulls all other colours into its gravitational field. #6F4719 functions as the palette's exclamation mark: highest chroma, lowest percentage (2.5%). A value spread of 78 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. This tonal restraint is characteristic of the Giovanni Battista Piazzetta approach: colour serves light, not the reverse. This is the light Giovanni Battista Piazzetta preferred, made measurable.