# background(in:fillStyle:) Sets the view’s background to an insettable shape filled with the default background style. ``` nonisolated func background(in shape: S, fillStyle: FillStyle = FillStyle()) -> some View where S : InsettableShape ``` ## Parameters `shape` An instance of a type that conforms to `InsettableShape` that SwiftUI draws behind the view using the `ShapeStyle/background` shape style. `fillStyle` The `FillStyle` to use when drawing the shape. The default style uses the nonzero winding number rule and antialiasing. ## Return Value A view with the specified insettable shape drawn behind it. ## Discussion This modifier behaves like `View/background(_:in:fillStyle:)`, except that it always uses the `ShapeStyle/background` shape style to fill the specified insettable shape. For example, you can use a `RoundedRectangle` as a background on a `Label`: ``` ZStack { Color.teal Label("Flag", systemImage: "flag.fill") .padding() .background(in: RoundedRectangle(cornerRadius: 8)) } ``` Without the background modifier, the fill color shows through the label. With the modifier, the label’s text and icon appear backed by a shape filled with a color that’s appropriate for light or dark appearance:  To create a background with other `View` types — or with a stack of views — use `View/background(alignment:content:)` instead. To add a `ShapeStyle` as a background, use `View/background(_:ignoresSafeAreaEdges:)`. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)