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# canReplaceMapContent

A Boolean value that indicates whether the tile content is fully opaque.

```
var canReplaceMapContent: Bool { get set }
```

## Discussion

If the tile content you provide can cover the entire drawing area with opaque content, set this property to <doc://com.apple.documentation/documentation/Swift/true>. Doing so serves as a hint to the map view that it doesn’t need to draw any additional content underneath your tiles. Set this property to <doc://com.apple.documentation/documentation/Swift/false> if your tiles contain any transparency.

The default value for this property is <doc://com.apple.documentation/documentation/Swift/false>.

---

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