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# MACaptionAppearanceIsCustomized(_:)

```
func MACaptionAppearanceIsCustomized(_ domain: MACaptionAppearanceDomain) -> Bool
```

## Parameters

`domain`

Preference domain, see  @link MACaptionAppearanceDomain @/link.

## Return Value

A boolean indicating if the currently-active style has been customized by the user

## Discussion

\abstract Provides a boolean indicating if the currently-active style has been customized by the user. This is useful for some clients who may need different fallback strategies for customized styles vs system-default styles.

---

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