The Protomaps basemap has also a grayscale style. The grayscale map looks like this: https://maps.protomaps.com/#map=5.09/47.14/8.64&theme=grayscale https://map

The Protomaps basemap has also a grayscale style. The grayscale map looks like this: https://maps.protomaps.com/#map=5.09/47.14/8.64&theme=grayscale https://maps.protomaps.com/#map=5.09/47.14/8.64&theme=graysc... Instructions for self-hosting a PMTiles file are available here: https://docs.protomaps.com/ https://docs.protomaps.com/.