Canvas
Boards are not persisted. This MVP exports a selection/region for one generation, then clears when you leave — nothing is saved to a canvas library.
FLUX.1 Pro Fill — upload a board (a matching fill mask is created). Drag a selection only if you want a crop.
Upload a board still, drag a selection, then export the region as the generation input.
No region exported yet — required for inpaint.
Uploading a board attaches a same-size white mask automatically — white is the area FLUX Fill replaces. Drag a crop only if you want a smaller region. Upload a custom mask only if it matches those pixels.
