Acetate is a basemap designed for gorgeous thematic cartography. By providing a neutral basemap you can place additional data on the map that will provide better clarity to the data itself without distracting colors of the basemap.

The data is from OpenStreetMap and Natural Earth.

Read more about Acetate:

Code is available from:

This section shows layer names
Description URL Pattern: http://a[0-3]{layer:acetate-bg}/{Z}/{X}/{Y}.png
Min Zoom Level: 2
Max Zoom Level: 18
Credit: ©2012 Esri & Stamen, Data from OSM and Natural Earth
SRS: EPSG:900913