@Override
	public String toString() {
		StringBuffer buff = new StringBuffer();

		buff.append("Type: Crushed PNG Image\n");
		buff.append("Size: " + totalLength + " bytes\n");
		buff.append("PNG Chunks: \n");
		for (PNGChunk chunk : chunks) {
			buff.append("    " + chunk.getIDString() + "\n");
		}
		return buff.toString();
	}
Processes PNG data finding each of the PNG chunks
@param reader BinaryReader for the PNG data
@throws IOException
Ghidra/Features/FileFormats/src/main/java/ghidra/file/formats/ios/png/ProcessedPNG.java