IKDropIndicator is the base class for the indicator thats used when the user drags a node over the tree.
When using a custom renderer, make sure you extend this class!
NOTE: extending this class hasn't been tested. This class should extend layoutcontainer instead of
HRule. In the next release it will have the proper base class.
tree:FlpTree [read-write]
Implementation
public function get tree():FlpTree
public function set tree(value:FlpTree):void
public function FlpDropIndicator()
mx.core.LayoutContainer