Three finishing nodes that make generated images read more like photographs: Lens (vignette and lateral colour fringes), Halation (light spreading from bright areas, neutral to film red-orange) and Film Grain (strongest in the midtones, mostly luminance, own grain size, seeded). Tests stub comfy_api; the publish workflow releases to the Comfy Registry after they pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>