The root node of the node tree that is rendered by this box.
var rootNode = mySpriteBox.rootNode;
Source
NodeWithSize get rootNode => _rootNode;
Source
set rootNode (NodeWithSize value) { if (value == _rootNode) return; // Ensure that the root node has a size assert(_transformMode == SpriteBoxTransformMode.nativePoints || value.size.width > 0); assert(_transformMode == SpriteBoxTransformMode.nativePoints || value.size.height > 0); // Remove sprite box references if (_rootNode != null) _removeSpriteBoxReference(_rootNode); // Update the value _rootNode = value; _actionControllers = null; // Add new references _addSpriteBoxReference(_rootNode); markNeedsLayout(); }