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# withDesign(_:)

Returns a new font descriptor that’s the same as the existing descriptor, but with the specified design.

```
func withDesign(_ design: UIFontDescriptor.SystemDesign) -> UIFontDescriptor?
```

## Parameters

`design`

The new system font design.

## Return Value

The new font descriptor, if the original font descriptor is from a system UI font; otherwise, `nil`.

## Discussion

This method changes the design of an existing font descriptor that describes a system UI font — for example, a font descriptor created by methods such as [`systemFont(ofSize:)`](/documentation/UIKit/UIFont/systemFont(ofSize:)), [`preferredFont(forTextStyle:)`](/documentation/UIKit/UIFont/preferredFont(forTextStyle:)), or [`preferredFontDescriptor(withTextStyle:)`](/documentation/UIKit/UIFontDescriptor/preferredFontDescriptor(withTextStyle:)). If the original font descriptor doesn’t describe a system font, this method returns `nil`.

## See Also

[`fontDescriptorWithFontAttributes:`](/documentation/UIKit/UIFontDescriptor/fontDescriptorWithFontAttributes:)

Returns a font descriptor with a dictionary of attributes.


---

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