ld be an array of objects that represent the first level of nodes in the tree. Each of these nodes can contain children - they can have a &#39;children&#39; field which refers to an array of the child nodes. A node can also contain other properties, which will contain the information you wish to fill the node out with. If the example above, the &quot;name&quot; and &quot;color&quot; fields are properties that we have chosen to give to each node, and might used when rendering each node. </div><div class="qm-