---
title: "MTStyleValue | Mobile sdk | Mobile sdk ios | Ios"
description: "A unified style value that may be a constant or an expression."
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# MTStyleValue

```
public enum MTStyleValue : Sendable
```

A unified style value that may be a constant or an expression.

-   `[color(_:)](#/s:11MapTilerSDK12MTStyleValueO5coloryACSo7UIColorCcACmF)`
    
    Undocumented
    
    #### Declaration
    
    Swift
    
    ```
    case color(UIColor)
    ```
    
-   `[number(_:)](#/s:11MapTilerSDK12MTStyleValueO6numberyACSdcACmF)`
    
    Undocumented
    
    #### Declaration
    
    Swift
    
    ```
    case number(Double)
    ```
    
-   `[bool(_:)](#/s:11MapTilerSDK12MTStyleValueO4boolyACSbcACmF)`
    
    Undocumented
    
    #### Declaration
    
    Swift
    
    ```
    case bool(Bool)
    ```
    
-   `[string(_:)](#/s:11MapTilerSDK12MTStyleValueO6stringyACSScACmF)`
    
    Undocumented
    
    #### Declaration
    
    Swift
    
    ```
    case string(String)
    ```
    
-   `[expression(_:)](#/s:11MapTilerSDK12MTStyleValueO10expressionyAcA010MTPropertyE0OcACmF)`
    
    Undocumented
    
    #### Declaration
    
    Swift
    
    ```
    case expression(MTPropertyValue)
    ```