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* feat(psd): map Filter Gallery smart filters to filter.filterGallery (Chrome)
A PSD smart filter from Filter > Filter Gallery (`GEfc`) was kept verbatim
as psd.unsupportedFilter, so it could not be edited. Its effect stack
(`GEfs` list of `GEfc` effects with `GEfk` effect enum and `GELv`
visibility) now maps to `filter.filterGallery {effects, foreground,
background}` when every effect and setting is modelled, and is written
back as `GEfc` on export. Layout taken from a Photopea-authored PSD.
The table starts with Chrome (`Chrm`: `Dtl ` detail, `Smth` smoothness).
Stacks with other effects or unknown settings stay verbatim as before.
* feat(smart-filters): edit Filter Gallery smart filters in the gallery dialog
Double-clicking a Filter Gallery smart filter in the Layers panel did
nothing. It now opens the Filter Gallery dialog with the recorded effect
stack and colours, previewing on the pixels below that filter; OK updates
the filter in place with layer.smartFilter.setParams (one history step).
* fix(psd): read and write Photoshop's inline Filter Gallery effect
Photoshop 27 writes a Filter Gallery smart filter with a single effect
inline in `Fltr` (`GEfc { GEfk, <settings> }`) rather than as a `GEfs`
list, so such files still opened as psd.unsupportedFilter. Both layouts
are read now. A single visible effect is written inline as Photoshop does;
several or hidden effects keep the list, which is the only layout with a
visibility flag (`GELv`).
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Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>