{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://example.com/pptx-presentation.schema.json",
  "title": "PPTX Presentation Schema",
  "description": "JSON Schema for PPTX presentation intermediate representation covering all pptxgenjs parameters",
  "type": "object",
  "definitions": {
    "coord": {
      "oneOf": [
        { "type": "number" },
        { "type": "string", "pattern": "^\\d+(\\.\\d+)?%$" }
      ],
      "description": "Coordinate value in inches (number) or percentage (e.g. '50%')"
    },
    "hexColor": {
      "type": "string",
      "pattern": "^[0-9A-Fa-f]{6}$",
      "description": "6-digit hex color without # prefix"
    },
    "themeColor": {
      "type": "string",
      "enum": ["tx1", "tx2", "bg1", "bg2", "accent1", "accent2", "accent3", "accent4", "accent5", "accent6"],
      "description": "PowerPoint theme/scheme color"
    },
    "color": {
      "oneOf": [
        { "$ref": "#/definitions/hexColor" },
        { "$ref": "#/definitions/themeColor" }
      ],
      "description": "Color value: hex string or theme color"
    },
    "margin": {
      "oneOf": [
        { "type": "number" },
        { "type": "array", "items": { "type": "number" }, "minItems": 4, "maxItems": 4 }
      ],
      "description": "Margin in points: single value or [top, right, bottom, left]"
    },
    "position": {
      "type": "object",
      "properties": {
        "x": { "$ref": "#/definitions/coord" },
        "y": { "$ref": "#/definitions/coord" },
        "w": { "$ref": "#/definitions/coord" },
        "h": { "$ref": "#/definitions/coord" }
      },
      "description": "Position and size properties"
    },
    "dataOrPath": {
      "type": "object",
      "properties": {
        "path": { "type": "string", "description": "URL or local file path" },
        "data": { "type": "string", "description": "Base64-encoded data" }
      }
    },
    "borderProps": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "enum": ["none", "dash", "solid"] },
        "color": { "$ref": "#/definitions/hexColor" },
        "pt": { "type": "number", "description": "Border width in points" }
      },
      "description": "Border properties"
    },
    "shapeFill": {
      "type": "object",
      "properties": {
        "color": { "$ref": "#/definitions/color" },
        "transparency": { "type": "number", "minimum": 0, "maximum": 100, "description": "Fill transparency percent" },
        "type": { "type": "string", "enum": ["none", "solid"] }
      },
      "description": "Shape fill properties"
    },
    "shapeLine": {
      "allOf": [
        { "$ref": "#/definitions/shapeFill" },
        {
          "type": "object",
          "properties": {
            "width": { "type": "number", "description": "Line width in points" },
            "dashType": { "type": "string", "enum": ["solid", "dash", "dashDot", "lgDash", "lgDashDot", "lgDashDotDot", "sysDash", "sysDot"] },
            "beginArrowType": { "type": "string", "enum": ["none", "arrow", "diamond", "oval", "stealth", "triangle"] },
            "endArrowType": { "type": "string", "enum": ["none", "arrow", "diamond", "oval", "stealth", "triangle"] }
          }
        }
      ],
      "description": "Shape line/border properties"
    },
    "shadow": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "enum": ["outer", "inner", "none"] },
        "opacity": { "type": "number", "minimum": 0, "maximum": 1, "description": "Shadow opacity (0.0-1.0)" },
        "blur": { "type": "number", "minimum": 0, "maximum": 100, "description": "Shadow blur in points" },
        "angle": { "type": "number", "minimum": 0, "maximum": 359, "description": "Shadow angle in degrees" },
        "offset": { "type": "number", "minimum": 0, "maximum": 200, "description": "Shadow offset in points" },
        "color": { "$ref": "#/definitions/hexColor" },
        "rotateWithShape": { "type": "boolean" }
      },
      "required": ["type"],
      "description": "Shadow properties"
    },
    "hyperlink": {
      "type": "object",
      "properties": {
        "slide": { "type": "integer", "description": "Slide number to link to" },
        "url": { "type": "string", "description": "URL to link to" },
        "tooltip": { "type": "string" }
      },
      "description": "Hyperlink properties"
    },
    "textBaseProps": {
      "type": "object",
      "properties": {
        "align": { "type": "string", "enum": ["left", "center", "right", "justify"] },
        "bold": { "type": "boolean" },
        "breakLine": { "type": "boolean" },
        "bullet": {
          "oneOf": [
            { "type": "boolean" },
            {
              "type": "object",
              "properties": {
                "type": { "type": "string", "enum": ["bullet", "number"] },
                "characterCode": { "type": "string" },
                "indent": { "type": "number" },
                "numberType": {
                  "type": "string",
                  "enum": ["alphaLcParenBoth", "alphaLcParenR", "alphaLcPeriod", "alphaUcParenBoth", "alphaUcParenR", "alphaUcPeriod", "arabicParenBoth", "arabicParenR", "arabicPeriod", "arabicPlain", "romanLcParenBoth", "romanLcParenR", "romanLcPeriod", "romanUcParenBoth", "romanUcParenR", "romanUcPeriod"]
                },
                "numberStartAt": { "type": "number" }
              }
            }
          ]
        },
        "color": { "$ref": "#/definitions/color" },
        "fontFace": { "type": "string" },
        "fontSize": { "type": "number" },
        "highlight": { "$ref": "#/definitions/hexColor" },
        "italic": { "type": "boolean" },
        "lang": { "type": "string" },
        "textDirection": { "type": "string", "enum": ["horz", "vert", "vert270", "wordArtVert"] },
        "transparency": { "type": "number", "minimum": 0, "maximum": 100 },
        "underline": {
          "type": "object",
          "properties": {
            "style": {
              "type": "string",
              "enum": ["dash", "dashHeavy", "dashLong", "dashLongHeavy", "dbl", "dotDash", "dotDashHeave", "dotDotDash", "dotDotDashHeavy", "dotted", "dottedHeavy", "heavy", "none", "sng", "wavy", "wavyDbl", "wavyHeavy"]
            },
            "color": { "$ref": "#/definitions/color" }
          }
        },
        "valign": { "type": "string", "enum": ["top", "middle", "bottom"] },
        "softBreakBefore": { "type": "boolean" },
        "tabStops": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "position": { "type": "number" },
              "alignment": { "type": "string", "enum": ["l", "r", "ctr", "dec"] }
            },
            "required": ["position"]
          }
        }
      },
      "description": "Base text properties shared by text objects and table cells"
    },
    "textOptions": {
      "allOf": [
        { "$ref": "#/definitions/textBaseProps" },
        { "$ref": "#/definitions/position" },
        { "$ref": "#/definitions/shapeFill" },
        { "$ref": "#/definitions/dataOrPath" },
        {
          "type": "object",
          "properties": {
            "objectName": { "type": "string" },
            "baseline": { "type": "number" },
            "charSpacing": { "type": "number" },
            "fit": { "type": "string", "enum": ["none", "shrink", "resize"] },
            "flipH": { "type": "boolean" },
            "flipV": { "type": "boolean" },
            "glow": {
              "type": "object",
              "properties": {
                "color": { "$ref": "#/definitions/hexColor" },
                "opacity": { "type": "number" },
                "size": { "type": "number" }
              },
              "required": ["opacity", "size"]
            },
            "hyperlink": { "$ref": "#/definitions/hyperlink" },
            "indentLevel": { "type": "number" },
            "isTextBox": { "type": "boolean" },
            "line": { "$ref": "#/definitions/shapeLine" },
            "lineSpacing": { "type": "number" },
            "lineSpacingMultiple": { "type": "number", "minimum": 0, "maximum": 9.99 },
            "margin": { "$ref": "#/definitions/margin" },
            "outline": {
              "type": "object",
              "properties": {
                "color": { "$ref": "#/definitions/color" },
                "size": { "type": "number" }
              }
            },
            "paraSpaceAfter": { "type": "number" },
            "paraSpaceBefore": { "type": "number" },
            "placeholder": { "type": "string" },
            "rectRadius": { "type": "number" },
            "rotate": { "type": "number" },
            "rtlMode": { "type": "boolean" },
            "shadow": { "$ref": "#/definitions/shadow" },
            "shape": { "type": "string", "description": "Valid pptxgenjs shape name" },
            "strike": { "oneOf": [{ "type": "boolean" }, { "type": "string", "enum": ["dblStrike", "sngStrike"] }] },
            "subscript": { "type": "boolean" },
            "superscript": { "type": "boolean" },
            "vert": { "type": "string", "enum": ["eaVert", "horz", "mongolianVert", "vert", "vert270", "wordArtVert", "wordArtVertRtl"] },
            "wrap": { "type": "boolean" }
          }
        }
      ],
      "description": "Full text object options including all TextPropsOptions parameters"
    },
    "textObject": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "pattern": "^text$" },
        "text": { "type": "string", "description": "Text content" },
        "options": { "$ref": "#/definitions/textOptions" }
      },
      "required": ["type", "text"],
      "description": "Text slide object"
    },
    "shapeOptions": {
      "allOf": [
        { "$ref": "#/definitions/position" },
        { "$ref": "#/definitions/shapeFill" },
        { "$ref": "#/definitions/shapeLine" },
        { "$ref": "#/definitions/shadow" },
        { "$ref": "#/definitions/hyperlink" },
        {
          "type": "object",
          "properties": {
            "objectName": { "type": "string" },
            "align": { "type": "string", "enum": ["left", "center", "right", "justify"] },
            "angleRange": {
              "type": "array",
              "items": { "type": "number" },
              "minItems": 2,
              "maxItems": 2
            },
            "arcThicknessRatio": { "type": "number" },
            "flipH": { "type": "boolean" },
            "flipV": { "type": "boolean" },
            "points": {
              "type": "array",
              "items": {
                "oneOf": [
                  {
                    "type": "object",
                    "properties": {
                      "x": { "$ref": "#/definitions/coord" },
                      "y": { "$ref": "#/definitions/coord" },
                      "moveTo": { "type": "boolean" }
                    },
                    "required": ["x", "y"]
                  },
                  {
                    "type": "object",
                    "properties": {
                      "x": { "$ref": "#/definitions/coord" },
                      "y": { "$ref": "#/definitions/coord" },
                      "curve": { "type": "object" }
                    },
                    "required": ["x", "y", "curve"]
                  },
                  {
                    "type": "object",
                    "properties": {
                      "close": { "type": "boolean", "const": true }
                    },
                    "required": ["close"]
                  }
                ]
              }
            },
            "rectRadius": { "type": "number", "description": "Rounded rectangle radius (0.0-1.0)" },
            "rotate": { "type": "number", "description": "Rotation in degrees (-360 to 360)" }
          }
        }
      ],
      "description": "Shape object options"
    },
    "shapeObject": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "pattern": "^shape$" },
        "shapeName": { "type": "string", "description": "Valid pptxgenjs shape type (e.g. 'rect', 'ellipse', 'roundRect')" },
        "options": { "$ref": "#/definitions/shapeOptions" }
      },
      "required": ["type", "shapeName"],
      "description": "Shape slide object"
    },
    "tableCell": {
      "type": "object",
      "properties": {
        "text": { "type": "string" },
        "options": {
          "allOf": [
            { "$ref": "#/definitions/textBaseProps" },
            {
              "type": "object",
              "properties": {
                "autoPageCharWeight": { "type": "number", "minimum": -1.0, "maximum": 1.0, "description": "Auto-page character weight adjustment" },
                "autoPageLineWeight": { "type": "number", "minimum": -1.0, "maximum": 1.0, "description": "Auto-page line weight adjustment" },
                "border": {
                  "oneOf": [
                    { "$ref": "#/definitions/borderProps" },
                    { "type": "array", "items": { "$ref": "#/definitions/borderProps" }, "minItems": 4, "maxItems": 4 }
                  ]
                },
                "colspan": { "type": "integer", "minimum": 1 },
                "fill": { "$ref": "#/definitions/shapeFill" },
                "hyperlink": { "$ref": "#/definitions/hyperlink" },
                "margin": { "$ref": "#/definitions/margin" },
                "rowspan": { "type": "integer", "minimum": 1 }
              }
            }
          ]
        }
      },
      "description": "Table cell with text and styling options"
    },
    "tableOptions": {
      "allOf": [
        { "$ref": "#/definitions/position" },
        { "$ref": "#/definitions/textBaseProps" },
        {
          "type": "object",
          "properties": {
            "objectName": { "type": "string" },
            "autoPage": { "type": "boolean" },
            "autoPageCharWeight": { "type": "number" },
            "autoPageLineWeight": { "type": "number" },
            "autoPageRepeatHeader": { "type": "boolean" },
            "autoPageHeaderRows": { "type": "integer", "minimum": 1 },
            "autoPageSlideStartY": { "type": "number" },
            "border": {
              "oneOf": [
                { "$ref": "#/definitions/borderProps" },
                { "type": "array", "items": { "$ref": "#/definitions/borderProps" }, "minItems": 4, "maxItems": 4 }
              ]
            },
            "colW": {
              "oneOf": [
                { "type": "number" },
                { "type": "array", "items": { "type": "number" } }
              ]
            },
            "fill": { "$ref": "#/definitions/shapeFill" },
            "margin": { "$ref": "#/definitions/margin" },
            "rowH": {
              "oneOf": [
                { "type": "number" },
                { "type": "array", "items": { "type": "number" } }
              ]
            },
            "verbose": { "type": "boolean", "description": "Verbose mode for auto-paging debug output" }
          }
        }
      ],
      "description": "Table options including all TableProps parameters"
    },
    "tableObject": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "pattern": "^table$" },
        "rows": {
          "type": "array",
          "items": {
            "type": "array",
            "items": { "$ref": "#/definitions/tableCell" }
          }
        },
        "options": { "$ref": "#/definitions/tableOptions" }
      },
      "required": ["type", "rows"],
      "description": "Table slide object"
    },
    "imageOptions": {
      "allOf": [
        { "$ref": "#/definitions/position" },
        { "$ref": "#/definitions/dataOrPath" },
        { "$ref": "#/definitions/shadow" },
        { "$ref": "#/definitions/hyperlink" },
        {
          "type": "object",
          "properties": {
            "objectName": { "type": "string" },
            "altText": { "type": "string" },
            "flipH": { "type": "boolean" },
            "flipV": { "type": "boolean" },
            "placeholder": { "type": "string" },
            "rotate": { "type": "number" },
            "rounding": { "type": "boolean" },
            "sizing": {
              "type": "object",
              "properties": {
                "type": { "type": "string", "enum": ["contain", "cover", "crop"] },
                "w": { "$ref": "#/definitions/coord" },
                "h": { "$ref": "#/definitions/coord" },
                "x": { "$ref": "#/definitions/coord" },
                "y": { "$ref": "#/definitions/coord" }
              },
              "required": ["type", "w", "h"]
            },
            "transparency": { "type": "number", "minimum": 0, "maximum": 100 }
          }
        }
      ],
      "description": "Image options including all ImageProps parameters"
    },
    "imageObject": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "pattern": "^image$" },
        "options": { "$ref": "#/definitions/imageOptions" }
      },
      "required": ["type", "options"],
      "description": "Image slide object"
    },
    "chartData": {
      "type": "object",
      "properties": {
        "name": { "type": "string", "description": "Series name" },
        "labels": {
          "oneOf": [
            { "type": "array", "items": { "type": "string" } },
            { "type": "array", "items": { "type": "array", "items": { "type": "string" } } }
          ]
        },
        "sizes": { "type": "array", "items": { "type": "number" }, "description": "Bubble sizes" },
        "values": { "type": "array", "items": { "type": "number" }, "description": "Category values" }
      },
      "description": "Chart data series"
    },
    "optsChartGridLine": {
      "type": "object",
      "properties": {
        "cap": { "type": "string", "enum": ["flat", "round", "square"] },
        "color": { "$ref": "#/definitions/hexColor" },
        "size": { "type": "number" },
        "style": { "type": "string", "enum": ["solid", "dash", "dot", "none"] }
      },
      "description": "Chart grid line options"
    },
    "catAxisItem": {
      "type": "object",
      "properties": {
        "hidden": { "type": "boolean" },
        "labelColor": { "type": "string" },
        "labelFontBold": { "type": "boolean" },
        "labelFontFace": { "type": "string" },
        "labelFontItalic": { "type": "boolean" },
        "labelFontSize": { "type": "number" },
        "labelFrequency": { "type": "string" },
        "labelPos": { "type": "string", "enum": ["none", "low", "high", "nextTo"] },
        "labelRotate": { "type": "number" },
        "lineColor": { "type": "string" },
        "lineShow": { "type": "boolean" },
        "lineSize": { "type": "number" },
        "lineStyle": { "type": "string", "enum": ["solid", "dash", "dot"] },
        "majorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
        "majorTimeUnit": { "type": "string" },
        "majorUnit": { "type": "number" },
        "maxVal": { "type": "number" },
        "minorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
        "minorTimeUnit": { "type": "string" },
        "minorUnit": { "type": "number" },
        "minVal": { "type": "number" },
        "multiLevelLabels": { "type": "boolean" },
        "orientation": { "type": "string", "enum": ["minMax"] },
        "title": { "type": "string" },
        "titleColor": { "type": "string" },
        "titleFontFace": { "type": "string" },
        "titleFontSize": { "type": "number" },
        "titleRotate": { "type": "number" },
        "gridLine": { "$ref": "#/definitions/optsChartGridLine" },
        "labelFormatCode": { "type": "string" },
        "baseTimeUnit": { "type": "string" },
        "crossesAt": { "oneOf": [{ "type": "number" }, { "type": "string", "enum": ["autoZero"] }] }
      },
      "description": "Category axis item for catAxes array"
    },
    "valAxisItem": {
      "type": "object",
      "properties": {
        "crossesAt": { "oneOf": [{ "type": "number" }, { "type": "string", "enum": ["autoZero"] }] },
        "displayUnit": { "type": "string", "enum": ["billions", "hundredMillions", "hundreds", "hundredThousands", "millions", "tenMillions", "tenThousands", "thousands", "trillions"] },
        "displayUnitLabel": { "type": "boolean" },
        "hidden": { "type": "boolean" },
        "labelColor": { "type": "string" },
        "labelFontBold": { "type": "boolean" },
        "labelFontFace": { "type": "string" },
        "labelFontItalic": { "type": "boolean" },
        "labelFontSize": { "type": "number" },
        "labelFormatCode": { "type": "string" },
        "labelPos": { "type": "string", "enum": ["none", "low", "high", "nextTo"] },
        "labelRotate": { "type": "number" },
        "lineColor": { "type": "string" },
        "lineShow": { "type": "boolean" },
        "lineSize": { "type": "number" },
        "lineStyle": { "type": "string", "enum": ["solid", "dash", "dot"] },
        "logScaleBase": { "type": "number", "minimum": 2, "maximum": 99 },
        "majorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
        "majorUnit": { "type": "number" },
        "maxVal": { "type": "number" },
        "minorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
        "minVal": { "type": "number" },
        "orientation": { "type": "string", "enum": ["minMax"] },
        "title": { "type": "string" },
        "titleColor": { "type": "string" },
        "titleFontFace": { "type": "string" },
        "titleFontSize": { "type": "number" },
        "titleRotate": { "type": "number" },
        "gridLine": { "$ref": "#/definitions/optsChartGridLine" }
      },
      "description": "Value axis item for valAxes array"
    },
    "chartOptions": {
      "allOf": [
        { "$ref": "#/definitions/position" },
        {
          "type": "object",
          "properties": {
            "objectName": { "type": "string" },
            "altText": { "type": "string" },

            "axisPos": { "type": "string", "enum": ["b", "l", "r", "t"] },
            "chartColors": { "type": "array", "items": { "$ref": "#/definitions/hexColor" } },
            "chartColorsOpacity": { "type": "number" },
            "dataBorder": { "$ref": "#/definitions/borderProps" },
            "displayBlanksAs": { "type": "string", "enum": ["gap", "span", "zero"] },
            "invertedColors": { "type": "array", "items": { "$ref": "#/definitions/hexColor" } },
            "lang": { "type": "string" },
            "layout": { "$ref": "#/definitions/position" },
            "shadow": { "$ref": "#/definitions/shadow" },
            "showLabel": { "type": "boolean" },
            "showLeaderLines": { "type": "boolean" },
            "showLegend": { "type": "boolean" },
            "showPercent": { "type": "boolean" },
            "showSerName": { "type": "boolean" },
            "showTitle": { "type": "boolean" },
            "showValue": { "type": "boolean" },

            "v3DPerspective": { "type": "number", "minimum": 0, "maximum": 120 },
            "v3DRAngAx": { "type": "boolean" },
            "v3DRotX": { "type": "number", "minimum": 0, "maximum": 359.9 },
            "v3DRotY": { "type": "number", "minimum": 0, "maximum": 359.9 },

            "chartArea": {
              "type": "object",
              "properties": {
                "border": { "$ref": "#/definitions/borderProps" },
                "fill": { "$ref": "#/definitions/shapeFill" },
                "roundedCorners": { "type": "boolean" }
              }
            },
            "plotArea": {
              "type": "object",
              "properties": {
                "border": { "$ref": "#/definitions/borderProps" },
                "fill": { "$ref": "#/definitions/shapeFill" }
              }
            },

            "catAxes": { "type": "array", "items": { "$ref": "#/definitions/catAxisItem" } },
            "catAxisBaseTimeUnit": { "type": "string" },
            "catAxisCrossesAt": { "oneOf": [{ "type": "number" }, { "type": "string", "enum": ["autoZero"] }] },
            "catAxisHidden": { "type": "boolean" },
            "catAxisLabelColor": { "type": "string" },
            "catAxisLabelFontBold": { "type": "boolean" },
            "catAxisLabelFontFace": { "type": "string" },
            "catAxisLabelFontItalic": { "type": "boolean" },
            "catAxisLabelFontSize": { "type": "number" },
            "catAxisLabelFrequency": { "type": "string" },
            "catAxisLabelPos": { "type": "string", "enum": ["none", "low", "high", "nextTo"] },
            "catAxisLabelRotate": { "type": "number" },
            "catAxisLineColor": { "type": "string" },
            "catAxisLineShow": { "type": "boolean" },
            "catAxisLineSize": { "type": "number" },
            "catAxisLineStyle": { "type": "string", "enum": ["solid", "dash", "dot"] },
            "catAxisMajorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
            "catAxisMajorTimeUnit": { "type": "string" },
            "catAxisMajorUnit": { "type": "number" },
            "catAxisMaxVal": { "type": "number" },
            "catAxisMinorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
            "catAxisMinorTimeUnit": { "type": "string" },
            "catAxisMinorUnit": { "type": "number" },
            "catAxisMinVal": { "type": "number" },
            "catAxisMultiLevelLabels": { "type": "boolean" },
            "catAxisOrientation": { "type": "string", "enum": ["minMax"] },
            "catAxisTitle": { "type": "string" },
            "catAxisTitleColor": { "type": "string" },
            "catAxisTitleFontFace": { "type": "string" },
            "catAxisTitleFontSize": { "type": "number" },
            "catAxisTitleRotate": { "type": "number" },
            "catGridLine": { "$ref": "#/definitions/optsChartGridLine" },
            "catLabelFormatCode": { "type": "string" },
            "secondaryCatAxis": { "type": "boolean" },
            "showCatAxisTitle": { "type": "boolean" },

            "serAxisBaseTimeUnit": { "type": "string" },
            "serAxisHidden": { "type": "boolean" },
            "serAxisLabelColor": { "type": "string" },
            "serAxisLabelFontBold": { "type": "boolean" },
            "serAxisLabelFontFace": { "type": "string" },
            "serAxisLabelFontItalic": { "type": "boolean" },
            "serAxisLabelFontSize": { "type": "number" },
            "serAxisLabelFrequency": { "type": "string" },
            "serAxisLabelPos": { "type": "string", "enum": ["none", "low", "high", "nextTo"] },
            "serAxisLineColor": { "type": "string" },
            "serAxisLineShow": { "type": "boolean" },
            "serAxisMajorTimeUnit": { "type": "string" },
            "serAxisMajorUnit": { "type": "number" },
            "serAxisMinorTimeUnit": { "type": "string" },
            "serAxisMinorUnit": { "type": "number" },
            "serAxisOrientation": { "type": "string", "enum": ["minMax"] },
            "serAxisTitle": { "type": "string" },
            "serAxisTitleColor": { "type": "string" },
            "serAxisTitleFontFace": { "type": "string" },
            "serAxisTitleFontSize": { "type": "number" },
            "serAxisTitleRotate": { "type": "number" },
            "serGridLine": { "$ref": "#/definitions/optsChartGridLine" },
            "serLabelFormatCode": { "type": "string" },
            "showSerAxisTitle": { "type": "boolean" },

            "secondaryValAxis": { "type": "boolean" },
            "showValAxisTitle": { "type": "boolean" },
            "valAxes": { "type": "array", "items": { "$ref": "#/definitions/valAxisItem" } },
            "valAxisCrossesAt": { "oneOf": [{ "type": "number" }, { "type": "string", "enum": ["autoZero"] }] },
            "valAxisDisplayUnit": { "type": "string", "enum": ["billions", "hundredMillions", "hundreds", "hundredThousands", "millions", "tenMillions", "tenThousands", "thousands", "trillions"] },
            "valAxisDisplayUnitLabel": { "type": "boolean" },
            "valAxisHidden": { "type": "boolean" },
            "valAxisLabelColor": { "type": "string" },
            "valAxisLabelFontBold": { "type": "boolean" },
            "valAxisLabelFontFace": { "type": "string" },
            "valAxisLabelFontItalic": { "type": "boolean" },
            "valAxisLabelFontSize": { "type": "number" },
            "valAxisLabelFormatCode": { "type": "string" },
            "valAxisLabelPos": { "type": "string", "enum": ["none", "low", "high", "nextTo"] },
            "valAxisLabelRotate": { "type": "number" },
            "valAxisLineColor": { "type": "string" },
            "valAxisLineShow": { "type": "boolean" },
            "valAxisLineSize": { "type": "number" },
            "valAxisLineStyle": { "type": "string", "enum": ["solid", "dash", "dot"] },
            "valAxisLogScaleBase": { "type": "number", "minimum": 2, "maximum": 99 },
            "valAxisMajorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
            "valAxisMajorUnit": { "type": "number" },
            "valAxisMaxVal": { "type": "number" },
            "valAxisMinorTickMark": { "type": "string", "enum": ["none", "inside", "outside", "cross"] },
            "valAxisMinVal": { "type": "number" },
            "valAxisOrientation": { "type": "string", "enum": ["minMax"] },
            "valAxisTitle": { "type": "string" },
            "valAxisTitleColor": { "type": "string" },
            "valAxisTitleFontFace": { "type": "string" },
            "valAxisTitleFontSize": { "type": "number" },
            "valAxisTitleRotate": { "type": "number" },
            "valGridLine": { "$ref": "#/definitions/optsChartGridLine" },
            "valLabelFormatCode": { "type": "string" },

            "bar3DShape": { "type": "string", "enum": ["box", "cylinder", "cone", "pyramid"] },
            "barDir": { "type": "string", "enum": ["bar", "col"] },
            "barGapDepthPct": { "type": "number" },
            "barGapWidthPct": { "type": "number" },
            "barGrouping": { "type": "string", "enum": ["clustered", "stacked", "standard"] },
            "barOverlapPct": { "type": "number" },

            "dataNoEffects": { "type": "boolean" },
            "holeSize": { "type": "number" },

            "lineCap": { "type": "string", "enum": ["flat", "round", "square"] },
            "lineDash": { "type": "string", "enum": ["dash", "dashDot", "lgDash", "lgDashDot", "lgDashDotDot", "solid", "sysDash", "sysDot"] },
            "lineDataSymbol": { "type": "string", "enum": ["circle", "dash", "diamond", "dot", "none", "square", "triangle"] },
            "lineDataSymbolLineColor": { "type": "string" },
            "lineDataSymbolLineSize": { "type": "number" },
            "lineDataSymbolSize": { "type": "number" },
            "lineSize": { "type": "number" },
            "lineSmooth": { "type": "boolean" },

            "firstSliceAng": { "type": "number", "minimum": 0, "maximum": 359 },

            "radarStyle": { "type": "string", "enum": ["standard", "marker", "filled"] },

            "dataLabelBkgrdColors": { "type": "boolean" },
            "dataLabelColor": { "type": "string" },
            "dataLabelFontBold": { "type": "boolean" },
            "dataLabelFontFace": { "type": "string" },
            "dataLabelFontItalic": { "type": "boolean" },
            "dataLabelFontSize": { "type": "number" },
            "dataLabelFormatCode": { "type": "string" },
            "dataLabelFormatScatter": { "type": "string", "enum": ["custom", "customXY", "XY"] },
            "dataLabelPosition": { "type": "string", "enum": ["b", "bestFit", "ctr", "l", "r", "t", "inEnd", "outEnd"] },

            "dataTableFontSize": { "type": "number" },
            "dataTableFormatCode": { "type": "string" },
            "showDataTable": { "type": "boolean" },
            "showDataTableHorzBorder": { "type": "boolean" },
            "showDataTableKeys": { "type": "boolean" },
            "showDataTableOutline": { "type": "boolean" },
            "showDataTableVertBorder": { "type": "boolean" },

            "legendColor": { "type": "string" },
            "legendFontFace": { "type": "string" },
            "legendFontSize": { "type": "number" },
            "legendPos": { "type": "string", "enum": ["b", "l", "r", "t", "tr"] },

            "title": { "type": "string" },
            "titleAlign": { "type": "string", "enum": ["l", "ctr", "r"] },
            "titleBold": { "type": "boolean" },
            "titleColor": { "type": "string" },
            "titleFontFace": { "type": "string" },
            "titleFontSize": { "type": "number" },
            "titlePos": {
              "type": "object",
              "properties": {
                "x": { "type": "number" },
                "y": { "type": "number" }
              }
            },
            "titleRotate": { "type": "number" },

            "cap": { "type": "string", "enum": ["flat", "round", "square"] },
            "color": { "$ref": "#/definitions/hexColor" },
            "size": { "type": "number" },
            "style": { "type": "string", "enum": ["solid", "dash", "dot", "none"] }
          }
        }
      ],
      "description": "Chart options including all IChartOpts parameters"
    },
    "chartObject": {
      "type": "object",
      "properties": {
        "type": { "type": "string", "pattern": "^chart$" },
        "chartType": { "type": "string", "enum": ["area", "bar", "bar3D", "bubble", "doughnut", "line", "pie", "radar", "scatter"] },
        "data": { "type": "array", "items": { "$ref": "#/definitions/chartData" } },
        "options": { "$ref": "#/definitions/chartOptions" }
      },
      "required": ["type", "chartType", "data"],
      "description": "Chart slide object"
    },
    "slideNumberProps": {
      "allOf": [
        { "$ref": "#/definitions/position" },
        { "$ref": "#/definitions/textBaseProps" },
        {
          "type": "object",
          "properties": {
            "margin": { "$ref": "#/definitions/margin" }
          }
        }
      ],
      "description": "Slide number display properties"
    },
    "backgroundProps": {
      "allOf": [
        { "$ref": "#/definitions/dataOrPath" },
        { "$ref": "#/definitions/shapeFill" },
        {
          "type": "object",
          "properties": {
            "fill": { "$ref": "#/definitions/hexColor", "description": "Deprecated: use shapeFill.color instead" }
          }
        }
      ],
      "description": "Slide background properties (color or image with DataOrPathProps + ShapeFillProps)"
    },
    "slideObject": {
      "type": "object",
      "properties": {
        "background": { "$ref": "#/definitions/backgroundProps" },
        "color": { "$ref": "#/definitions/hexColor", "description": "Default text color for this slide" },
        "hidden": { "type": "boolean", "description": "Whether slide is hidden" },
        "notes": { "type": "string", "description": "Speaker notes for this slide" },
        "slideNumber": { "$ref": "#/definitions/slideNumberProps" },
        "objects": {
          "type": "array",
          "items": {
            "oneOf": [
              { "$ref": "#/definitions/textObject" },
              { "$ref": "#/definitions/shapeObject" },
              { "$ref": "#/definitions/tableObject" },
              { "$ref": "#/definitions/imageObject" },
              { "$ref": "#/definitions/chartObject" }
            ]
          }
        }
      },
      "description": "A single slide with background, properties, and content objects"
    }
  },
  "properties": {
    "presentation": {
      "type": "object",
      "properties": {
        "layout": { "type": "string", "description": "Presentation layout (e.g. LAYOUT_16x9, LAYOUT_4x3)" },
        "author": { "type": "string" },
        "title": { "type": "string" },
        "subject": { "type": "string" },
        "company": { "type": "string" },
        "revision": { "type": "string" },
        "rtlMode": { "type": "boolean" },
        "masterSlide": { "type": "object", "description": "Master slide reference object" },
        "presLayout": {
          "type": "object",
          "properties": {
            "name": { "type": "string", "description": "Layout name (e.g. LAYOUT_16x9)" },
            "width": { "type": "number", "description": "Slide width in inches" },
            "height": { "type": "number", "description": "Slide height in inches" }
          },
          "description": "Presentation layout dimensions"
        },
        "theme": {
          "type": "object",
          "properties": {
            "headFontFace": { "type": "string" },
            "bodyFontFace": { "type": "string" }
          }
        }
      },
      "description": "Presentation-level metadata and layout settings"
    },
    "slides": {
      "type": "array",
      "items": { "$ref": "#/definitions/slideObject" },
      "minItems": 1,
      "description": "Array of slides in the presentation"
    }
  },
  "required": ["slides"],
  "additionalProperties": true
}