{
  "status": "pending_visual_review",
  "source": "frame_generated.png",
  "output": "frame_approved.png",
  "canvas": [
    1920,
    1080
  ],
  "left": [
    0,
    0,
    600,
    1080
  ],
  "center": [
    600,
    0,
    720,
    1080
  ],
  "right": [
    1320,
    0,
    600,
    1080
  ],
  "center_exact_green_pixels": 777600,
  "center_expected_pixels": 777600,
  "method": "deterministic rail extraction and composition after typography PASS"
}