NX Loom 0.28.0 — the veteran pass: stamps, frozen regions, spacing bias

Imagine ten years with the tool — this is what you'd have built up: a personal topology library, the power to declare work done, and control over where loops sit, not just how many.

• Topology stamps. Eye ring, mouth loops, pole fan — three built-ins, plus Save Stamp to capture the arcs around your 3D cursor into your own library from any layout. Placement is a gesture: aim, wheel to size, R to rotate, click to drop. Stamps land as suggestion ghosts in the usual accept/discard lane — never applied on their own, and mirroring comes free: stamp one eye with symmetry on, accept, both eyes.
• Frozen regions. Press F over a patch (or Freeze All Solved) to mark it done — its loop counts survive any later re-solve, however you change density or edit elsewhere. Mint wash in the viewport; thaw anytime. Editing a frozen patch's arcs naturally thaws it: edited is no longer done.
• Spacing bias. A per-arc slider pinches loop rows toward a crease (knee, elbow) without changing a single count — the solve is untouched and hand edits stay lossless. Ticks preview it live; mirrors inherit it.

Suite: 440 headless + 18 GUI checks, 122-layout sweep clean.