sclass BlurAndPosterizeSettings extends MetaWithChangeListeners {
  settable int blur = 0;
  settable int colors = 64;
  settable RGB colorDrift = new RGB(0, 0, 0);
  
  BlurAndPosterizeSettings cloneMe() {
    ret shallowClone(this)
      .colorDrift(colorDrift.cloneMe());
  }
  
  // optional - null for simple decolorization
  settableWithVar Decolorizer decolorizer;
  
  int pixelRowsForImage(WidthAndHeight img) {
    ret pixelRows < 0 ? img.getHeight() : pixelRows;
  }
  
  static SnPSettings allColors(int pixelRows) {
    ret new SnPSettings(pixelRows, 255);
  }
}