proj4rs backend: laea, stere, aea, lcc, tmerc, merc, eqc, moll, geos, somerc, sterea (no ortho or aeqd yet). geos needs +h=35785831; longlat works, units become degrees.

URL: WMTS GetCapabilities, ArcGIS MapServer, or XYZ template (type is detected) WMTS layer id (blank: only layer) / XYZ max zoom

COG style: colormap viridismagmaplasmainfernograyrdbuterrain min, max (blank: auto 2-98%) bands (0-based; one, or three for RGB) source CRS override