ngx-graph-new/demo/chartTypes.ts

Modify the ngx-chart version is used

const chartGroups = [
  {
    name: 'Other Charts',
    charts: [
      {
        name: 'Directed Graph',
        selector: 'directed-graph',
        inputFormat: 'graph',
        options: ['colorScheme', 'showLegend']
      }
    ]
  }
];

export default chartGroups;