Optional
extentmatrix IDs. The length of this array needs
to match the length of the resolutions
array. By default, it will be ['0', '1', '2', ..., resolutions.length-1]
Resolutions. The array index of each
resolution needs to match the zoom level. This means that even if a minZoom
is configured, the resolutions array will have a length of maxZoom + 1
Tile size.
Extent for the tile grid.