export declare const DefaultAbstractNodeStyle: {
    branch: {
        color: string;
        width: number;
    };
    shape: {
        strokeColor: string;
        strokeWidth: number;
    };
};
export declare const DefaultNodeStyle: {
    branch: {
        width: number;
    };
    shape: {
        rectangleRadius: number;
        strokeWidth: number;
        fill: string;
    };
};