Paint the background plates for "Nobody Works Here", a two-minute film for imdUSD with no narration and no captions. Read BRIEF.md in this repository first and follow it exactly: it holds the story, the two visual styles (ENGRAVED, matching refs/engraved/, and true PIXEL art on a 320x180 grid upscaled 6x nearest-neighbour, matching refs/pixel/), the exact palette for each, the hard rules, and the table of 17 frames with what to leave empty for us.

The rules that matter most: NO legible text, letters, numerals, logos or brand marks anywhere (clock faces with ticks only, signs and forms blank); NO frogs and NO visible faces (we add the characters in code; leave the desk chair in p01 empty); never mix the two styles in one frame; only each style's palette colours; every screen the brief marks is a flat empty dark rectangle; compose so centre crops to 1:1 and 9:16 still hold the subject. p02-room-dawn must be the SAME composition as p01-room-night, made by recolouring p01's 320x180 grid, not redrawn. e4-tower is 3840x2160 with a strict grid of dark windows.

For pixel frames, if the image model cannot produce clean pixel art, enforce it in code: reduce to 320x180, map every pixel to the nearest palette colour, remove stray single pixels, upscale 6x nearest-neighbour; deliver both the 1920x1080 file and the native pNN-name-1x.png. Inspect every frame with your tool and regenerate any with text, numerals, a logo, a frog, a face, off-palette colour, or (pixel) blocks that are not clean 6x6. Produce sheet.png with all 17 frames small, in order, file names only in its margins. The README lists every file with its dimensions and states plainly any rule it still misses.