Write a per-slot grayscale mask sidecar (img_XXXX.mask.png) and record
it on the slot. Add the multipart /grid_pool/set_mask route.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Render the pool as an in-node thumbnail grid with paste/drop/upload
ingest, click-to-select (active border), inline label editing, and
delete. Toolbar (upload/refresh/count) sits at the bottom per ComfyUI
convention; the node auto-grows to fit content.
pool_id is a declared STRING input (not a hidden input): ComfyUI only
fills hidden inputs for built-in types, but forwards every serialized
widget value by name. The JS mints a per-node UUID and hides the widget
via widget.hidden=true (frontend 1.45), keeping it serialized.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ethanfel