PeachImage
PeachImage.AnimatedImage
AnimatedImage.Frames Property
The frames of this animation, in display order. May be a lazily-decoded, single-pass sequence backed by an open stream — enumerate once; pass a System.Collections.Generic.List<>/array to the constructor instead if you need to enumerate more than once.
public System.Collections.Generic.IEnumerable<PeachImage.AnimatedImageFrame> Frames { get; }