Types of visualizations

The type field chooses how a layer's data is turned into a picture. Pick the type that matches your data and message:

Type	Use it for	Works on
Simple	One uniform style for every feature; raster imagery as-is	Points, lines, polygons, raster
Categorical	Color (or icon) by a discrete category	Points, lines, polygons, raster
Numeric	Vary color or size by a numeric value (choropleths, proportional symbols)	Points, lines, polygons, raster
Heatmaps	Point density as a smooth surface	Points
H3	Aggregate points into hexagonal bins	Points
Raster	Imagery, single/multiband numeric, categorical, and hillshade	Raster

Each page lists the geometry types it applies to, the properties that matter, and worked examples. For the values you'll plug into these styles, see Colors & palettes, Icons, and Classification methods.