Expand description
Chunk types and functions
Constants
Image data
Image trailer
Image header
Palette
Animation control
Background colour
Frame control
Frame data
Physical pixel dimensions
Image last-modification time
Transparency
Functions
Returns true if the chunk is critical.
Returns true if the chunk is private.
Checks whether the reserved bit of the chunk name is set.
If it is set the chunk name is invalid.
Returns true if the chunk is safe to copy if unknown.