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Bundle 2 (decals): explosion scorch pool, cover damage-cracks, room-arena scars — all procedural, client-only, zero netcode. Records the pivotal finding that a stock Synty prop shadergraph's _BaseColor is Unity-Per-Material (not Hybrid-Per-Instance), so URPMaterialPropertyBaseColor darkening silently no-ops on cover — the fork to decal quads. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>