---
title: "Accessibility (core)"
slug: "150-core-accessibility-schemas"
updated: 2025-03-19T17:11:48Z
published: 2025-03-19T17:11:48Z
canonical: "docs.developer.comcast.com/150-core-accessibility-schemas"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.developer.comcast.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Accessibility (core)

**Accessibility Schema 1.5.0 | Core SDK**

## Types

### FontFamily

```
FontFamily: {
    MONOSPACED_SERIF: 'monospaced_serif',
    PROPORTIONAL_SERIF: 'proportional_serif',
    MONOSPACED_SANSERIF: 'monospaced_sanserif',
    PROPORTIONAL_SANSERIF: 'proportional_sanserif',
    SMALLCAPS: 'smallcaps',
    CURSIVE: 'cursive',
    CASUAL: 'casual',
},
```

---

### SpeechRate

```
type SpeechRate = number
```

---

### VoiceGuidanceSettings

```
type VoiceGuidanceSettings = {
  enabled: boolean // Whether or not voice guidance should be enabled by default
  navigationHints: boolean // Whether or not voice guidance should include additional navigation hints
  rate: SpeechRate // The rate at which voice guidance speech will be read back to the user
  speed?: SpeechRate // **DEPRECATED** Use rate instead. The rate at which voice guidance speech will be read back to the user
}
```

See also:

[SpeechRate](/docs/150-core-accessibility-schemas#speechrate)

---

### FontSize

```
type FontSize = number
```

---

### Color

```
type Color = string
```

---

### FontEdge

```
FontEdge: {
    NONE: 'none',
    RAISED: 'raised',
    DEPRESSED: 'depressed',
    UNIFORM: 'uniform',
    DROP_SHADOW_LEFT: 'drop_shadow_left',
    DROP_SHADOW_RIGHT: 'drop_shadow_right',
},
```

---

### Opacity

```
type Opacity = number
```

---

### HorizontalAlignment

```
type HorizontalAlignment = string
```

---

### VerticalAlignment

```
type VerticalAlignment = string
```

---

### ClosedCaptionsStyles

The default styles to use when displaying closed-captions

```
type ClosedCaptionsStyles = {
  fontFamily?: string
  fontSize?: number
  fontColor?: string
  fontEdge?: string
  fontEdgeColor?: string
  fontOpacity?: number
  backgroundColor?: string
  backgroundOpacity?: number
  textAlign?: string
  textAlignVertical?: string
  windowColor?: string
  windowOpacity?: number
}
```

---

### ClosedCaptionsSettings

```
type ClosedCaptionsSettings = {
  enabled: boolean // Whether or not closed-captions should be enabled by default
  styles?: ClosedCaptionsStyles // The default styles to use when displaying closed-captions
  preferredLanguages?: string[]
}
```

See also:

[ClosedCaptionsStyles](/docs/150-core-accessibility-schemas#closedcaptionsstyles)

---