Lepton sites: ringed, colored by phase; arrows show the phase in each sheet.
A 2×2×2 block of face-centered-cubic cells, to scale, stood on a corner so the ⟨111⟩ stacking axis is vertical. Each lepton is an eigenstate of the family operator W: equal weight on one site of each sheet type A, B, C, with its own phase on each sheet. Drag to rotate, scroll or pinch to zoom.