private static int[] reduceColors(int[] rgbTriplets, int colorDepth, byte[] newPixels, final int[] colorPalette)	{
 		int[] colorInfo = new int[2];
 		new WuQuant(rgbTriplets, 1<<colorDepth).quantize(newPixels, colorPalette, colorInfo);
 		
 		return colorInfo;
 	}
Write out a zero length data sub-block
subs/gif-revert/src/main/java/com/engineer/gif/revert/lib/AnimatedGIFWriter.java