---
title: NSVisualEffectView.Material.underPageBackground
framework: appkit
role: symbol
role_heading: Case
path: appkit/nsvisualeffectview/material-swift.enum/underpagebackground
---

# NSVisualEffectView.Material.underPageBackground

The material for the area behind the pages of a document.

## Declaration

```swift
case underPageBackground
```

## Discussion

Discussion This material supports Desktop Tinting in Dark Mode. With Desktop Tinting, the system modifies the material’s color dynamically by incorporating some of the color from the underlying desktop image.

## See Also

### Material Types

- [NSVisualEffectView.Material.titlebar](appkit/nsvisualeffectview/material-swift.enum/titlebar.md)
- [NSVisualEffectView.Material.selection](appkit/nsvisualeffectview/material-swift.enum/selection.md)
- [NSVisualEffectView.Material.menu](appkit/nsvisualeffectview/material-swift.enum/menu.md)
- [NSVisualEffectView.Material.popover](appkit/nsvisualeffectview/material-swift.enum/popover.md)
- [NSVisualEffectView.Material.sidebar](appkit/nsvisualeffectview/material-swift.enum/sidebar.md)
- [NSVisualEffectView.Material.headerView](appkit/nsvisualeffectview/material-swift.enum/headerview.md)
- [NSVisualEffectView.Material.sheet](appkit/nsvisualeffectview/material-swift.enum/sheet.md)
- [NSVisualEffectView.Material.windowBackground](appkit/nsvisualeffectview/material-swift.enum/windowbackground.md)
- [NSVisualEffectView.Material.hudWindow](appkit/nsvisualeffectview/material-swift.enum/hudwindow.md)
- [NSVisualEffectView.Material.fullScreenUI](appkit/nsvisualeffectview/material-swift.enum/fullscreenui.md)
- [NSVisualEffectView.Material.toolTip](appkit/nsvisualeffectview/material-swift.enum/tooltip.md)
- [NSVisualEffectView.Material.contentBackground](appkit/nsvisualeffectview/material-swift.enum/contentbackground.md)
- [NSVisualEffectView.Material.underWindowBackground](appkit/nsvisualeffectview/material-swift.enum/underwindowbackground.md)