What do you mean it has no layout? Ive never used Gnome 3, but KDE comes with a standard panel with a menu, task bar, and system tray that is perfectly functional and doesnt need to be changed. I used standard KDE with no customization for months and had no problem.
What do you mean move the wallpaper?If you want to move the wallpaper you can just use the gimp or something. That the other DEs are so insecure about themselves that they are even unsure where the wallpaper should go is... worrying.
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