Boleslas Biegas dwells firmly in the shadows, with no more than a whisper of light. Cool tones set the register here - the blues and greens easily outweigh any warm accents. All colours lean toward grey, building depth through value rather than colour punch. A single dominant - #030204 at 48.2% - sets the character of the whole composition. #85B0B4 is not a small accent - at 0.6% it qualifies as a major presence and gives the palette its chromatic identity. The full value range is 64 units: broad enough to build convincing three-dimensional form. Together these qualities place Boleslas Biegas firmly in the tonal tradition - concerned with mood and atmosphere rather than chromatic display. This is palette 4 of Boleslas Biegas's sequence - a single chapter in a chromatic story told across many works.