I agree that D sounds like the easiest to market if it’s reliable/effective. It also probably has more of an iceberg effect than the others - more unknowns that

I agree that D sounds like the easiest to market if it’s reliable/effective. It also probably has more of an iceberg effect than the others - more unknowns that you can’t see initially. PSDs are a hairy format - even people exporting things isn’t always straightforward, and a machine can’t reason the way a person does. This idea was a pie-in-the-sky goal for a project I worked on ~ 10 years ago, and it was abandoned as too complex to do it reliably, within a reasonable timeframe. Given that psd’s are just layers of raster graphics (but plausibly just a single layer) I doubt even adobe could make the tool as described, and they have the benefit of ~25 years of knowledge about photoshop and PSDs.