Sixteen fixed color emitters, four per quadrant, all aimed at a central pure-white capacitance well. The well stores phase pressure, reports charge, then discharges only when coherence crosses threshold.
Four quadrants prevent drift. Four beams per quadrant create symmetric pressure. No emitter gets to chase the center; the center must reconcile all incoming color vectors.
The white center is drawn as a storage field. Incoming beams increase charge and phase density. The brighter ring means stored energy, not arbitrary glow.
When coherence rises, the well can dump a narrow white pulse. If coherence is low, the well holds, damps, and prevents color bleed across boundaries.