---
title: "StyleSpecificationWithMetaData | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> 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.

# Type Alias StyleSpecificationWithMetaData

StyleSpecificationWithMetaData: [StyleSpecification](https://docs.maptiler.com/sdk-js/api-reference/types/StyleSpecification/) & {  
    metadata?: {  
        maptiler?: {  
            halo: [RadialGradientLayerConstructorOptions](https://docs.maptiler.com/sdk-js/api-reference/types/RadialGradientLayerConstructorOptions/);  
            space: [CubemapLayerConstructorOptions](https://docs.maptiler.com/sdk-js/api-reference/types/CubemapLayerConstructorOptions/);  
        };  
        "maptiler:copyright": string;  
    };  
}