According to the style spec, a sprite is a single png image and accompanying json file containing all symbol images. This is required for a map style.

This repository contains the svg files used in kartverket.vectortiles.

More symboles can be found on Geonorge

Se How to create a sprite for more information.

Here a different version of spritezero-cli is used, since the original one was not updadet to a newer version of spritezero.

npm install -g https://github.com/geoloniamaps/spritezero-cli spritezero [output filename] [input directory]

spritezero landtopo ./img