Minimal

{
  "id": "design__R_qnpflb_",
  "templateId": "tmpl-universal",
  "cardSize": "a6-portrait",
  "layoutSnapshot": {
    "aspect": 0.7142857142857143,
    "slots": [
      {
        "id": "hero",
        "key": "hero",
        "name": "Hero",
        "type": "image",
        "face": "front",
        "x": 0.12,
        "y": 0.12,
        "w": {
          "v": 0.76,
          "u": "world"
        },
        "h": {
          "v": 0.42,
          "u": "world"
        }
      },
      {
        "id": "motif",
        "key": "motif",
        "name": "Motif",
        "type": "image",
        "face": "front",
        "x": 0.43,
        "y": 0.695,
        "w": {
          "v": 0.14,
          "u": "world"
        },
        "h": {
          "v": 0.075,
          "u": "world"
        }
      },
      {
        "id": "name",
        "key": "name",
        "name": "Name",
        "type": "text",
        "face": "front",
        "x": 0.1,
        "y": 0.8,
        "w": {
          "v": 0.8,
          "u": "world"
        },
        "h": {
          "v": 0.1,
          "u": "world"
        },
        "font": "display"
      },
      {
        "id": "message",
        "key": "message",
        "name": "Message",
        "type": "text",
        "face": "inside",
        "x": 0.12,
        "y": 0.3,
        "w": {
          "v": 0.76,
          "u": "world"
        },
        "h": {
          "v": 0.4,
          "u": "world"
        },
        "font": "body"
      }
    ]
  },
  "content": {
    "paletteId": "white",
    "treatmentId": "modern",
    "patternId": "none",
    "content": {
      "hero": {
        "type": "image",
        "svgRef": "subject:cat",
        "tint": "ink"
      },
      "name": {
        "type": "text",
        "text": "Hello"
      },
      "greeting": {
        "type": "text",
        "text": "Hello"
      },
      "motif": {
        "type": "image",
        "svgRef": "motif:rule",
        "tint": "accent"
      },
      "message": {
        "type": "text",
        "text": "A little note to say I'm thinking of you."
      },
      "band": {
        "type": "shape",
        "fill": "accent"
      },
      "border": {
        "type": "shape",
        "fill": "none",
        "stroke": "ink",
        "strokeWidth": 1.5
      }
    }
  }
}