{
  "id": "013",
  "instruction": "Add a white circular vignette around the center of the image.",
  "difficulty_level": "easy",
  "type": "Vignette",
  "resources": {
    "input_file": "013_start.jpg"
  },
  "reference_output": {
    "expected_file": "013_end.jpg"
  },
  "source": "manual",
  "layer_related": true,
  "rubric_file": "013_rubric.json"
}