{
  "$id": "https://schema.workspec.io/v1alpha1/c4/spec.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "additionalProperties": {},
  "description": "The singleton project style spec (lenient; the style compiler normalises).",
  "properties": {
    "connections": {
      "additionalProperties": {
        "additionalProperties": {},
        "description": "Authored visual style for one edge category (lenient; the style compiler normalises).",
        "properties": {
          "accent": {
            "description": "Accent color, e.g. \"#64748b\".",
            "type": "string"
          },
          "style": {
            "description": "Rendered line style. Known values: \"solid\", \"dashed\".",
            "type": "string"
          }
        },
        "type": "object"
      },
      "default": {},
      "description": "Per-category edge visual style, keyed by category name. Absent categories use code defaults.",
      "propertyNames": {
        "type": "string"
      },
      "type": "object"
    },
    "elements": {
      "additionalProperties": {
        "additionalProperties": {},
        "description": "Authored visual style for one element kind (lenient; the style compiler normalises).",
        "properties": {
          "accent": {
            "description": "Accent color, e.g. \"#4A90D9\" or \"hsl(214 88% 51%)\".",
            "type": "string"
          },
          "icon": {
            "description": "Icon name rendered on the node, e.g. \"user\", \"database\".",
            "type": "string"
          },
          "shape": {
            "description": "Rendered node shape. Known values: \"box\", \"cylinder\", \"pill\", \"hexagon\".",
            "type": "string"
          },
          "variant": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "description": "Optional visual variant. Known values: \"external\" (external-system styling)."
          }
        },
        "type": "object"
      },
      "default": {},
      "description": "Per-element-kind visual style, keyed by kind name. Absent kinds use code defaults.",
      "propertyNames": {
        "type": "string"
      },
      "type": "object"
    },
    "source": {
      "description": "Freeform provenance note: how or where this artifact was sourced from.",
      "type": "string"
    },
    "surfaces": {
      "description": "Optional per-theme surface/ink/page color overrides.",
      "properties": {
        "dark": {
          "description": "Surface colors for the dark theme.",
          "properties": {
            "ink": {
              "description": "Text/ink color used on the surface.",
              "type": "string"
            },
            "page": {
              "description": "Page (canvas) background color.",
              "type": "string"
            },
            "surface": {
              "description": "Node surface color for this theme.",
              "type": "string"
            }
          },
          "type": "object"
        },
        "light": {
          "description": "Surface colors for the light theme.",
          "properties": {
            "ink": {
              "description": "Text/ink color used on the surface.",
              "type": "string"
            },
            "page": {
              "description": "Page (canvas) background color.",
              "type": "string"
            },
            "surface": {
              "description": "Node surface color for this theme.",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    },
    "type": {
      "description": "Artifact kind label: \"style\" (v2). Legacy files used \"spec\" — still accepted; the compiler upgrades.",
      "type": "string"
    },
    "version": {
      "description": "Style spec format version. Current is 2.",
      "type": "number"
    }
  },
  "title": "WorkSpec C4 Style Spec (v1alpha1)",
  "type": "object"
}