{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/gagoar/pr-brief/main/schema/pr-brief-theme.schema.json",
  "title": "pr-brief diagram theme",
  "description": "beautiful-mermaid's DiagramColors (bg, fg and five optional colours) plus an optional status block.",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "bg",
    "fg"
  ],
  "properties": {
    "$schema": {
      "type": "string"
    },
    "bg": {
      "$ref": "#/$defs/hex",
      "description": "Background. Required."
    },
    "fg": {
      "$ref": "#/$defs/hex",
      "description": "Text. Required. It needs a contrast ratio of 4.5:1 against bg and against the node fill."
    },
    "line": {
      "$ref": "#/$defs/hex",
      "description": "Edges. Default: fg mixed 50% into bg."
    },
    "accent": {
      "$ref": "#/$defs/hex",
      "description": "Accepted for beautiful-mermaid compatibility, where it colours arrowheads. Mermaid colours arrowheads like their edge, so it has no effect on a pr-brief diagram."
    },
    "muted": {
      "$ref": "#/$defs/hex",
      "description": "Secondary text and group headers. Default: fg mixed 60% into bg."
    },
    "surface": {
      "$ref": "#/$defs/hex",
      "description": "Node fill. Default: fg mixed 3% into bg."
    },
    "border": {
      "$ref": "#/$defs/hex",
      "description": "Node and group stroke. Default: fg mixed 20% into bg."
    },
    "status": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "added",
        "modified",
        "removed"
      ],
      "description": "Colours of added, modified and removed nodes. Default: green, amber and red tuned to the background's lightness.",
      "properties": {
        "added": {
          "$ref": "#/$defs/hex"
        },
        "modified": {
          "$ref": "#/$defs/hex"
        },
        "removed": {
          "$ref": "#/$defs/hex"
        }
      }
    }
  },
  "$defs": {
    "hex": {
      "type": "string",
      "pattern": "^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$"
    }
  }
}