{
    "jupyter.lab.setting-icon-class": "jp-SettingsIcon",
    "jupyter.lab.setting-icon-label": "Custom CSS",
    "title": "Custom CSS",
    "description": "Custom CSS settings",
    "properties": {
        "rules": {
            "title": "CSS rules",
            "description": "CSS rules to be inserted into the HTML page",
            "items": { "$ref": "#/definitions/rule" },
            "type": "array",
            "default": []
        }
    },
    "additionalProperties": false,
    "type": "object",
    "definitions": {
        "rule": {
            "title": "Rule definition",
            "properties": {
                "selector": {
                    "title": "CSS selector",
                    "type": "string"
                },
                "styles": {
                    "title": "Style definition",
                    "description": "Style definitions for the selector",
                    "type": "array",
                    "items": { "type": "string" },
                    "minItems": 1
                }
            },
            "required": ["selector", "styles"],
            "type": "object"
        }
    }
}