---
id: largeTitle-options
title: Large Title Options
sidebar_label: Large Title
---

Controls the top bar large title on iOS, available on iOS 11 and above.

```js
const options = {
  topBar: {
    largeTitle: {}
  }
};
```

### `visible`

Controls whether the large title is visible or not.

| Type    | Required | Platform |
| ------- | -------- | -------- |
| boolean | No       | iOS      |

### `fontSize`

Set the title font size. On Android this value is in `sp`.

| Type   | Required | Platform |
| ------ | -------- | -------- |
| number | No       | iOS      |

### `color`

Large title text color.

| Type  | Required | Platform |
| ----- | -------- | -------- |
| Color | No       | iOS      |

### `fontFamily`

Set the large title [FontFamily](fonts.mdx).

| Type       | Required | Platform |
| ---------- | -------- | -------- |
| FontFamily | No       | iOS      |

### `fontWeight`

Set the font weight for the large title.

| Type   | Required | Platform |
| ------ | -------- | -------- |
| number | No       | iOS      |