Properties CloneWithParent(Properties parent)
{
Properties copy = parent != null ? new Properties(parent) : new Properties();
foreach (var pair in dict) {
Properties child = pair.Value as Properties;
if (child != null)
copy.dict.Add(pair.Key, child.CloneWithParent(copy));
else
copy.dict.Add(pair.Key, pair.Value);
}
return copy;
}