```js
const TIMELINE_ITEMS = [
  { label: '2014', value: 2014, selected: false },
  { label: '2015', value: 2015, selected: false },
  { label: '2016', value: 2016, selected: false },
  { label: '2017', value: 2017, selected: true },
  { label: '2018', value: 2018, selected: false }
];

<div>
  <div style={{ backgroundColor: '#2E57B8', padding: 50 }}>
    <Timeline
      items={TIMELINE_ITEMS}
      onChange={(selected) => { console.log(selected)}}
    />
  </div>

  <div style={{ backgroundColor: '#fff', padding: 50, marginTop: 16 }}>
    <Timeline
      items={TIMELINE_ITEMS}
      onChange={(selected) => { console.log(selected)}}
      theme="dark"
    />
  </div>
</div>

```