private static void ReadChildren(this XContainer topic, NodeBase node, IReadOnlyDictionary <string, XMindStyle> stylesById)
{
var children = new List <NodeBase>();
var topics = topic.Element(Namespaces.Content("children"))?.Element(Namespaces.Content("topics"));
if (topics != null && topics.IsAttributeEquals("type", "attached"))
{
foreach (var subtopic in topics.Elements(Namespaces.Content("topic")))
{
var child = node.AddChildTransactional();
ReadNode(subtopic, child, stylesById);
children.Add(child);
}
}
ReadBounds(topic, children);
}