調色

Apply a restrained post-production color mapping to the exact selected baseline A image, not a relighting. Use a gentle RGB color balance: cool blue-teal tint only within already existing dark tones, a slight warm tint only within already existing bright tones, and natural skin midtones. Keep the original luminance map, exposure, local brightness relationships and every light-shadow boundary exactly as in A. In particular the left wall, left floor, ceiling and character edge must not gain new illumination or bright patches. Do not introduce sunlight, golden-hour light, rim light, light rays, window-light bands or glowing highlights. Do not deepen, widen or move any shadow. Preserve the red tie and red hair streak, navy garment detail and all original figure and background pixels' spatial locations. The visible change must be color grading alone.