abaa980f93
Four things the studio owed the visitor: - UNDO/REDO in the header, so a look can be taken back and put back without reloading the photo; a fresh edit clears the redo trail. - Opening a saved frame, or picking a look out of its history, now drops the stale preview buffer instead of leaving the previous render on the stage. - The picked history look is marked in the accent, so it is plain which look the photo is wearing. - The histogram is re-clamped against the photo box on resize, so opening a chip column no longer pushes the overlay past the edge of the canvas. The 'NEW SAVES: FILM STRIP' chip goes: a save already lands in the strip.