## Not run:
# if (require(tmap)) {
# data(World, metro)
#
# World$color <- map_coloring(World, palette="Pastel2")
# qtm(World, fill = "color")
#
# # map_coloring used indirectly: qtm(World, fill = "MAP_COLORS")
#
# data(NLD_prov, NLD_muni)
# tm_shape(NLD_prov) +
# tm_fill("name", legend.show = FALSE) +
# tm_shape(NLD_muni) +
# tm_polygons("MAP_COLORS", palette="Greys", alpha = .25) +
# tm_shape(NLD_prov) +
# tm_borders(lwd=2) +
# tm_text("name", shadow=TRUE) +
# tm_format_NLD(title="Dutch provinces and\nmunicipalities", bg.color="white")
# }
# ## End(Not run)
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