{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://agentic-mermaid.dev/schemas/style-spec.schema.json",
  "title": "Agentic Mermaid StyleSpec",
  "description": "A declarative style record for Agentic Mermaid SVG/PNG rendering. A style can be a palette, a full look, or a small role override.",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "$schema": {
      "type": "string",
      "description": "Optional editor metadata. The renderer ignores it."
    },
    "name": {
      "type": "string",
      "description": "Required only when registering the style by name."
    },
    "blurb": {
      "type": "string"
    },
    "colors": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "bg": { "type": "string" },
        "fg": { "type": "string" },
        "line": { "type": "string" },
        "accent": { "type": "string" },
        "muted": { "type": "string" },
        "surface": { "type": "string" },
        "border": { "type": "string" }
      }
    },
    "font": { "type": "string" },
    "stroke": {
      "enum": ["crisp", "jittered", "freehand"]
    },
    "roughness": { "type": "number" },
    "bowing": { "type": "number" },
    "passes": { "type": "number" },
    "strokeWidth": { "type": "number" },
    "fill": {
      "enum": ["none", "hachure", "solid", "wash"]
    },
    "hachureAngle": { "type": "number" },
    "hachureGap": { "type": "number" },
    "fillWeight": { "type": "number" },
    "washOpacity": { "type": "number" },
    "washEdge": { "type": "number" },
    "backdrop": {
      "enum": ["plain", "paper-ruled", "grid"]
    },
    "backend": {
      "enum": ["default", "rough", "hybrid"],
      "description": "Expert override. Most styles should omit it and let the renderer infer the backend."
    },
    "intent": {
      "enum": ["premium", "draft", "lofi"]
    },
    "mono": {
      "type": "boolean"
    },
    "text": {
      "$ref": "#/$defs/textRoleStyle"
    },
    "node": {
      "$ref": "#/$defs/nodeRoleStyle"
    },
    "edge": {
      "$ref": "#/$defs/edgeRoleStyle"
    },
    "group": {
      "$ref": "#/$defs/groupRoleStyle"
    }
  },
  "$defs": {
    "textTransform": {
      "enum": ["uppercase", "lowercase", "capitalize"]
    },
    "textRoleStyle": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "fontSize": { "type": "number" },
        "fontWeight": { "type": "number" },
        "letterSpacing": { "type": "number" },
        "textTransform": { "$ref": "#/$defs/textTransform" },
        "textColor": { "type": "string" }
      }
    },
    "boxRoleStyle": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "paddingX": { "type": "number" },
        "paddingY": { "type": "number" },
        "cornerRadius": { "type": "number" },
        "lineWidth": { "type": "number" },
        "fillColor": { "type": "string" },
        "borderColor": { "type": "string" }
      }
    },
    "nodeRoleStyle": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "fontSize": { "type": "number" },
        "fontWeight": { "type": "number" },
        "letterSpacing": { "type": "number" },
        "textTransform": { "$ref": "#/$defs/textTransform" },
        "textColor": { "type": "string" },
        "paddingX": { "type": "number" },
        "paddingY": { "type": "number" },
        "cornerRadius": { "type": "number" },
        "lineWidth": { "type": "number" },
        "fillColor": { "type": "string" },
        "borderColor": { "type": "string" }
      }
    },
    "edgeRoleStyle": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "fontSize": { "type": "number" },
        "fontWeight": { "type": "number" },
        "letterSpacing": { "type": "number" },
        "textTransform": { "$ref": "#/$defs/textTransform" },
        "textColor": { "type": "string" },
        "lineWidth": { "type": "number" },
        "bendRadius": { "type": "number" },
        "strokeColor": { "type": "string" }
      }
    },
    "groupRoleStyle": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "fontSize": { "type": "number" },
        "fontWeight": { "type": "number" },
        "letterSpacing": { "type": "number" },
        "textTransform": { "$ref": "#/$defs/textTransform" },
        "textColor": { "type": "string" },
        "paddingX": { "type": "number" },
        "paddingY": { "type": "number" },
        "cornerRadius": { "type": "number" },
        "lineWidth": { "type": "number" },
        "fillColor": { "type": "string" },
        "borderColor": { "type": "string" },
        "fontFamily": { "type": "string" },
        "headerFillColor": { "type": "string" }
      }
    }
  }
}