All ZIP files contain wallpapers with resolutions 1024x768, 1280x1024,
1600x900, 1920x1080. If your desktop has a different resolution then
install a wallpaper with the same aspect ratio and select strech mode.
If your resolution is e.g. 1360x768 (16:9) then install the 1600x900
Wallpapers (C) 2013 kitana.org by Sabine Weiss