---
widget: { class: widget }
sizer: { type: vertical }
proportion: 1
children:
- widget: { id: tabs, class: list, type: horizontal, style: tabs }
  proportion: 0
- widget: { id: pages, class: pagedPane }
  proportion: 1
...
---
widget: { class: widget }
sizer: { type: vertical }
proportion: 1
children:
- widget: { class: scrollBarPane, scrollHorizontal: true, scrollVertical: false, autoHide: true, size: [50, 10] }
  proportion: 0
  sizer: { type: vertical }
  children:
  - widget: { id: tabs, class: list, type: horizontal, style: tabs }
    proportion: 1
- widget: { id: pages, class: pagedPane }
  proportion: 1
...
Allow tabs to scroll if necessary
Allow tabs to scroll if necessary
