[spider-mario]

> But its not like any reader ever supports it fully, hell most readers dont support showing the other images in a png file.

Do you mean APNG? In all fairness, that is not even in the specification although there is discussion to add it. https://github.com/w3c/PNG-spec/issues/26

The one that was specified was MNG but it was a different format and practically no one used it since it was not parsable as a PNG.

[midjji]

No not animated, I mean that the .png format specifies how to specify an arbitrary number of datablocks, without specifying how they should be used aside from amounts to an recommendation of which one should be shown.

It used by some videogames as assets, for instance storing what amounts as a thumbnail as a shown image, but leaving meshes and textures in the other internal datablocks.