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	Class	Description
	BitmapFillLayer	This Class is not ready for public use
	BitmapLayer	The BitmapLayer class draws the IEffects in its list into a single BitmapData. Drawing to a Bitmap can result in significant frame rate improvements when the number of DisplayObjects is high, the number of filters is high or the type of filters used are processor intensive.
	VectorLayer	The VectorLayer class draws the IVectors in its list to a single Graphics. Though using the VectorLayer can prove to be a very convient way to draw vectors it doesn't necessarily yield any amazing performance differences.