These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.96 s (backtrack: 0/20).

[ebuild  N     ] x11-themes/gentoo-artwork-0.4.2-r1::gentoo  USE="grub icons pixmaps -kde -lilo -offensive" 64056 KiB

Total: 1 package (1 new), Size of downloads: 64056 KiB