      return "unchanged";
    case PaintPropertyChangeType::kChangedOnlyCompositedValues:
      return "composited-values";
    case PaintPropertyChangeType::kChangedOnlyNonRerasterValues:
      return "non-reraster";
    case PaintPropertyChangeType::kChangedOnlySimpleValues:
      return "simple-values";
    case PaintPropertyChangeType::kChangedOnlyValues:
      return "values";
    case PaintPropertyChangeType::kNodeAddedOrRemoved:
      return "node-add-remove";
  }
}