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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] media-gfx/imageworsener-1.3.5:0/3::gentoo  USE="jpeg png zlib -static-libs -test -webp" 659 KiB

Total: 1 package (1 new), Size of downloads: 659 KiB