Blazor Maps Example - OpenStreetMap with Sublayers
This sample shows the various African countries that have been specifically highlighted on a World map using a sublayer.
In this example, you can see how to render the geometric layers as a sublayer on OpenStreetMap. On top of OpenStreetMap, the African continent's countries are rendered using GeoJSON data.
More information about OpenStreetMap with sublayer can be found in this documentation section.