{
  "$schema": "https://openpresentation.org/schema/opf/v1",
  "name": "Content Payload Matrix",
  "description": "Focused technical fixture covering every concrete slide content payload shape.",
  "slides": [
    {
      "title": "Text Payload",
      "type": "text",
      "text": [
        "Plain text can include ",
        {
          "text": "formatted runs",
          "bold": true,
          "color": "#2563EB"
        },
        " without changing the payload kind."
      ]
    },
    {
      "title": "Bullets Payload",
      "bullets": [
        "Plain bullet",
        [
          "Rich ",
          {
            "text": "bullet",
            "italic": true
          }
        ],
        {
          "text": "Nested bullet",
          "level": 1
        }
      ]
    },
    {
      "title": "List Payload",
      "type": "list",
      "items": [
        "String item",
        [
          "Rich ",
          {
            "text": "list item",
            "bold": true
          }
        ],
        {
          "text": "Described item",
          "description": "List item object form supports supporting detail.",
          "level": 1
        }
      ]
    },
    {
      "title": "Image Payload",
      "type": "image",
      "image": {
        "src": "asset:diagram",
        "alt": "Simple architecture diagram"
      }
    },
    {
      "title": "Video Payload",
      "type": "video",
      "video": {
        "src": "asset:demo-video",
        "title": "Short demo clip"
      }
    },
    {
      "title": "Chart Payload",
      "type": "chart",
      "chart": {
        "type": "line",
        "data": {
          "columns": [
            "Month",
            "Latency"
          ],
          "rows": [
            [
              "Jan",
              420
            ],
            [
              "Feb",
              310
            ],
            [
              "Mar",
              220
            ]
          ]
        }
      }
    },
    {
      "title": "Table Payload",
      "type": "table",
      "table": {
        "columns": [
          "Field",
          "String",
          "Number",
          "Boolean",
          "Null"
        ],
        "rows": [
          [
            "Example",
            "value",
            42,
            true,
            null
          ]
        ]
      }
    },
    {
      "title": "Code Payload",
      "type": "code",
      "code": {
        "source": "export const valid = result.errors.length === 0;",
        "language": "ts",
        "filename": "validator.ts"
      }
    },
    {
      "title": "Metric Payload",
      "type": "metric",
      "metric": {
        "value": "99.9%",
        "label": "Validation pass rate",
        "description": "Example value for renderer metric cards.",
        "delta": "+2.1 pts",
        "trend": "up"
      }
    },
    {
      "title": "Quote Payload",
      "type": "quote",
      "quote": {
        "text": "The payload model stays predictable even as slide content varies.",
        "attribution": "OPF technical fixture",
        "source": "Fixture note"
      }
    },
    {
      "title": "Timeline Payload",
      "type": "timeline",
      "timeline": {
        "name": "Fixture Flow",
        "events": [
          {
            "when": "Step 1",
            "what": "Author"
          },
          {
            "when": "Step 2",
            "what": "Validate"
          },
          {
            "when": "Step 3",
            "what": "Render"
          }
        ]
      }
    }
  ],
  "assets": {
    "diagram": {
      "src": "./assets/diagram.svg",
      "alt": "Architecture diagram",
      "mediaType": "image/svg+xml"
    },
    "demo-video": {
      "src": "./media/demo.mp4",
      "mediaType": "video/mp4",
      "title": "Demo video"
    }
  }
}