Even though the general aspect of Windows improved with XP and even received a big quality improvement with Windows Vista (you just have to remember Windows 98), it is true that the designs can always be improved. That is why this theme for Windows XP and Vista works perfectly. Moon Shadow is a sober, dark and elegant theme.
Customize the aspect of your Windows
With Moon Shadow all the menus, backgrounds, colors and the majority of icons will be totally personalized, so that we'll have a really elaborate Windows, with some details that are missing from the "official" design.
You shouldn't be afraid of installing this kind of design, due to the fact that it may affect Windows or its performance, themes only require a very small amount of RAM memory, because, once installed and activated, the theme almost seems as if it had been included in the original Windows.
All in all, with a good wallpaper and proper organization, Moon Shadow can make Windows seem much more elegant and sober.