For TomTom Maps we redefined all map elements to work in a 3D rendering instead of a pixel-tile-based-map - we tested colorschemes and working in Map-Box and we development eventually used the same CSS based logic to describe all elements from colours, to line thickness and shading types for buildings. Also all iconography and patterns had to work on the map, and all zoom levels needed to get their own styling variation
This was the most detailed multi layered project I ever worked on, and what is shown here only scratches the surface.
