style-schema.json

{
  "definitions": {
    "Style": {
      "title": "Node Style",
      "description": "Describes the appearance of metadata node and contains the descriptions of its children node styles.",
      "type": "object",
      "properties": {
        "style": {
          "title": "Style",
          "description": "The style of the metadata node.",
          "type": "object",
          "required": false,
          "properties": {
            "scalars": {
              "title": "Scalars",
              "description": "Color mapping for scalar values",
              "required": false,
              "type": "object",
              "properties": {
                "colormap": {
                  "description": "The colors of the colormap",
                  "oneOf": [
                    {
                      "type": "string",
                      "enum": ["plasma", "viridis", "inferno", "magma"],
                      "required": false
                    },
                    {
                      "type": "array",
                      "items": {
                        "type": "string",
                        "pattern": "^#[0-9a-fA-F]{6}$"
                      },
                      "required": false
                    }
                  ]
                },
                "min": {
                  "description": "The minimum value of the colormap",
                  "type": "number"
                },
                "max": {
                  "description": "The maximum value of the colormap",
                  "type": "number"
                }
              }
            },
            "categories": {
              "title": "Categories",
              "description": "Color mapping for categorical (string) values",
              "required": false,
              "type": "object",
              "patternProperties": {
                "^.*$": {
                  "description": "The category value as key and corresponding color",
                  "type": "string",
                  "pattern": "^#[0-9a-fA-F]{6}$"
                }
              }
            }
          }
        },
        "children": {
          "type": "object",
          "description": "The styles of the children nodes, contains the titles of children nodes as keys and the their styles as values.",
          "patternProperties": {
            "^.*$": {
              "description": "The child node title as key and the style of the child node as value",
              "$ref": "#/definitions/Style"
            }
          }
        }
      }
    }
  },
  "$ref": "#/definitions/Style"
}