> 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/styling.md).

# Styling

- [Style vector layers](https://help.felt.com/styling/style-vector-layers.md): Style point, line, and polygon layers in Felt. Color features by category or value, size points by value, and choose your own colors.
- [Style raster layers](https://help.felt.com/styling/style-raster-layers.md): Style rasters and imagery in Felt with color ranges, categories, or hillshade, and choose your own palettes. Use raster algebra for NDVI.
- [Basemaps](https://help.felt.com/styling/basemaps.md): Change the background map beneath your data, from Standard or Satellite to a solid color or your own XYZ tiles.
- [Labels](https://help.felt.com/styling/labels.md): Label features on a layer with an attribute, such as a name or a value, and style the text. Learn why Felt hides some labels.
- [Popups](https://help.felt.com/styling/popups.md): Choose what people see when they click a feature on a map, from attributes and photos to custom HTML or a web page.
- [Icons](https://help.felt.com/styling/icons.md): Style point layers with symbols, emoji, images, or logos, with a different icon for each category.
- [Zoom-based styling](https://help.felt.com/styling/zoom-based-styling.md): Control when layers and labels appear by zoom level. Change colors, sizes, opacity, and line widths as the map zooms.
- [Number formatting](https://help.felt.com/styling/number-formatting.md): Format numbers as currency, percentages, distances, or areas. Set decimals and units, or write custom numbro.js formats.
- [Advanced styling (FSL)](https://help.felt.com/styling/advanced-styling-fsl.md): Edit layer styles as JSON with Felt Style Language (FSL). Use MapLibre overrides for bivariate styles, combined labels, and more.


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