Muralism keeps values measured and balanced, a hallmark of tonal restraint. Built on cool foundations: the palette favours the blue-cyan-green arc. All colours lean toward grey, building depth through value rather than colour punch. The most saturated colour, #AEC1E3, is reserved to 3.7% of the surface, where it acts as a focal punctuation. A value spread of 60 units gives the palette both depth and air - shadows are genuinely dark, lights genuinely light. High luminosity and cool temperature suggest the plein-air condition: unfiltered daylight and open sky.