The length of the chunk's data (starts from offset + 8B).
Whether the chunk is optionally interpreted (as opposed to critical).
Whether the chunk is private and not defined in the standard.
Whether this chunk is safe to copy into a new image if unrecognized.
The offset of the beginning of the chunk
The type of the chunk.
A raw png chunk extracted from the datastream. A png is made up of a fixed signature and then a series of chunks which encode all the information in the png. The IPngChunk.type of the chunk determines what information it contains.