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      "shape": { "base_jitter": 0.2, "dome_min_top": 0.25, "billow": 0.4, "erosion_edge": 0.12 },
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      "multi_scatter": { "extinction": 0.35, "energy": 0.6, "phase": 0.5, "octaves": 3 },
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      "ambient": { "shade_tint": [0.45, 0.47, 0.8], "top_gain": 1.15 },
      "haze": { "low_per_km": 0.05, "low_height_km": 1.4, "beer_powder": 1.0, "min_stride_km": 0.25 },
      "sunset": { "warmth": 0.5, "intensity_gain": 0.25, "after_sunset_desaturation": 0.8 },
      "perf": { "opacity_cutoff": 0.03, "half_light_below": 0.35, "cheap_bloom": true, "seamless_composite": true, "smoke_split": true },
      "cheap": { "resolution_scale": 0.5, "min_stride_km": 0.25, "cheap_bloom": true }
    }
  }
}