# AtlasScrollBar

> A thin, rounded scroll bar whose thumb widens on hover and fades out when nothing is scrolling.

A thin, rounded scroll bar. The thumb widens when the pointer is over the bar and fades out when nothing is scrolling (policy `AsNeeded`). It stays drawn while hovered or pressed, and always when a screen reader is active ([AccessibilityState](https://atlasos.eterneon.net/framework/atlas-ui/accessibility-state.md)). Under reduced motion nothing fades or grows slowly: it shows and hides at once.

AtlasScrollBar is a Qt Quick Controls [`ScrollBar`](https://doc.qt.io/qt-6/qml-qtquick-templates-scrollbar.html); its inherited properties work as usual.

## Example

```qml
Flickable {
    ScrollBar.vertical: AtlasScrollBar {}
}
```