> For the complete documentation index, see [llms.txt](https://help.felt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.felt.com/layers/styling.md). # Styling {% embed url="" %} Felt offers a comprehensive set of styling options for both [vector](/layers/styling/vector-layers.md) and [raster](/layers/styling/raster-layers.md) layers to enhance your map's visual appeal. Change your [basemap](/layers/basemaps.md) between default, satellite, light/dark themes, or add custom basemaps via URLs. Style vector data (points, lines, polygons) by adjusting colors, opacity, stroke width, and creating size-based or categorical visualizations based on data attributes. Use zoom-based styling to ensure your map looks good at all scales by automatically adjusting feature size and opacity as users zoom. For raster data, apply color ranges, categorical styling, hillshading, or perform raster algebra operations. The sandwiching feature lets you control whether features appear above or below basemap elements like roads and water, creating professional-looking visualizations. Learn more about styling [vector](/layers/styling/vector-layers.md) and [raster ](/layers/styling/raster-layers.md)layers. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://help.felt.com/layers/styling.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.