Footage made from one layer of a layered .psd showed the whole document and
was named after the file. Its opti (tag 8BPS) stores the layer: the record
index (BE i32 at 14, -1 for the merged image), the bounds (LE i32 at 78-93)
and the name (UTF-8 at 344). The item now shows that layer as EffectCraft's
own Photoshop import does (at its own size with Retain Layer Sizes), named
<layer>/<file>. A layer without pixels (an adjustment layer) keeps the merged
image and is reported.