Some new interfaces were added to the Decora packages to enable the calling context to render the results of some effects directly, thereby avoiding the need to create additional intermediate pixel stores to return the results.

For now, the Prism stack creates a wrapper class that implements this interface and holds a handle to the Graphics object being used to render the scene. If the Prism Graphics object were to implement the interface directly then there would be no need for one of these wrapper objects to be created for every effect applied.