public static Envelope toLatLonBoundsBounds(Envelope worldBounds) {
    return new Envelope(
      getWorldLon(worldBounds.getMinX()),
      getWorldLon(worldBounds.getMaxX()),
      getWorldLat(worldBounds.getMinY()),
      getWorldLat(worldBounds.getMaxY()));
  }
Returns a copy of {@code worldBounds} transformed from web mercator where top-left corner of the planet is (0,0)
and bottom-right is (1,1) to latitude/longitude.
planetiler-core/src/main/java/com/onthegomap/planetiler/geo/GeoUtils.java