```javascript
const tasks = [
  {
    id: 'Task 1',
    name: 'Redesign website',
    start: '2016-12-28',
    end: '2016-12-31',
    progress: 20,
    dependencies: 'Task 2, Task 3',
    custom_class: 'bar-milestone' // optional
  },
  // ...
]
```

```javascript
const options = {
    header_height: 50,
    column_width: 30,
    step: 24,
    view_modes: ['Quarter Day', 'Half Day', 'Day', 'Week', 'Month'],
    bar_height: 20,
    bar_corner_radius: 3,
    arrow_curve: 5,
    padding: 18,
    view_mode: 'Day',
    date_format: 'YYYY-MM-DD',
    language: 'en', // or 'es', 'it', 'ru', 'ptBr', 'fr', 'tr', 'zh', 'de', 'hu'
    custom_popup_html: null
}
```