Map and Layers
A text note pinned to a lon / lat with a leader line — an HTML overlay that follows the map.
3 examples
Curved great-circle-style arcs between coordinate pairs (flight paths, network links).
2 examples
Root MapLibre canvas — theme-aware basemap; the ref is the raw MapLibre Map. With plan it is a non-geographic plan instead (a floor, a plant, a carriage) and every layer inside speaks plan units.
7 examples
Clusters dense point data into count bubbles that split apart as you zoom in.
1 example