FPNGE is only an encoder. Decoding can be done using ImageSharp and in case that doesn't perform well enough later be replaced by a different decoder.
Unfortunately FPNG (without E) doesn't support decoding FPNGE encoded files, so the next best fast decoder would be wuffs, however, implementing this would take a lot of effort. Maybe this adapter code could be compiled into the library instead.
FPNGE is only an encoder. Decoding can be done using ImageSharp and in case that doesn't perform well enough later be replaced by a different decoder.
Unfortunately FPNG (without E) doesn't support decoding FPNGE encoded files, so the next best fast decoder would be wuffs, however, implementing this would take a lot of effort. Maybe this adapter code could be compiled into the library instead.