Ridgeline

'chart-types-ridgeline': () => ({
  rows: [], config: {},
  foot: ['one ridge per desk', 'stacked on a shared scale, so the shapes compare'],
  mount: mountGridCharts({
    rows: book(3_000), columns: bookCols, columnsPer: 1, chartHeight: 400,
    chartTypeModules: ['ridgeline'],
    charts: [{ type: 'ridgeline', x: 'desk', series: 'symbol', y: 'price', title: 'Price by desk' }],
  }),
}),