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!7

concept ColorName {
  S color, name, comment;
}

module ColorNames > DynCRUD<ColorName> {
  *() { super(ColorName); }
  
  // API
  
  void addColorName(Color color, S name, S comment) {
    uniq_sync(ColorName, color := colorToHex(color), +name, +comment);
  }
  
  S getClosestColorName(Color color) {
    new Lowerst<S> best;
    for (ColorName cn)
      best.put(cn.name, colorDiff(color, colorFromHex(cn.color)));
    rest best!;
  }
}