I made the design and Mapfiles of the cartographic style BGT-Pastel
Have a look at the map here. The style is only visible when zoomed in. If you zoom out the BRT achtergrond style will show.
More info : https://www.geonovum.nl/over-geonovum/actueel/bgt-kaart-beschikbaar-gesteld-in-pasteltinten
URL WMTS: https://geodata.nationaalgeoregister.nl/tiles/service/wmts?&request=GetCapabilities&service=WMTS
URL TMS: https://geodata.nationaalgeoregister.nl/tiles/service/tms/1.0.0/bgtpastel /EPSG:28992