Easiest repro is to run HelloWorld. When you click on the close sprite, and CloseSelected.png is rendered, it is “offset” to the upper-right rather than being centered. It seems as though both CloseNormal and CloseSelected are anchored via their lower-left rather than their center. (But CloseNormal does seem initially positioned based on its center.)
Is this a bug? Or, if not, how are people dealing with it? It seems the 99.9% use case would be for the images to both be centered based on the position set to ::setPosition.