---
title: dark
framework: swiftui
role: symbol
role_heading: Type Property
path: swiftui/surroundingseffect/dark
---

# dark

An effect that dims passthrough video.

## Declaration

```swift
static var dark: SurroundingsEffect { get }
```

## Discussion

Discussion Use this value with the preferredSurroundingsEffect(_:) view modifier when you want to dim passthrough video while displaying a particular view. Doing so helps to draw attention to your app’s content while still enabling people to remain aware of their surroundings. This value can be used in the shared space.