# Styling

Stylesheets are available for OS MasterMap Topography Layer to optimise the cartographic representation of the product, assisting users in visualising and identifying topographic features at a glance. Users can choose the style that suits their use case best from the four different styles available: backdrop, light, outdoor, and standard.

The predefined stylesheets are available in four formats (QML, LYR, SLD and JSON) for interoperability with GIS and web map services. The files can be downloaded via the [OS MasterMap Topography Layer Stylesheets page on GitHub](https://github.com/OrdnanceSurvey/OSMM-Topography-Layer-stylesheets).

{% hint style="info" %}
Click the 'Code' drop-down button and then click 'Download ZIP' on GitHub to access the styling files.
{% endhint %}

<figure><img src="/files/5r06Mq8nAFBYNsPpBHoM" alt="Screenshot showing an extract of OS MasterMap Topography Layer in Outdoor style. The map is focussed over St Thomas&#x27; Hospital and Archbishop&#x27;s Park in London, UK." width="514"><figcaption><p>An extract of OS MasterMap Topography Layer in Outdoor Style.</p></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.os.uk/os-downloads/products/maps-and-imagery-portfolio/os-mastermap-topography-layer/os-mastermap-topography-layer-overview/styling.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.