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# background(_:)

Specifies a color that will be drawn behind the content within the
matched transition source.

```
func background(_ style: Color) -> some MatchedTransitionSourceConfiguration
```

## Parameters

`style`

The color to apply behind the content within the
matched transition source..

## Discussion

During a zoom transition, the background color fills the interpolated
shape as it groes from the matched transition source.

---

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