Royale Theme for WinXP it's an aplication designed as new XP Theme, which has leaked from Microsoft. This new theme come out from a beta version of the Media Center 2005 that was tested.
This new theme hasn't a notorious difference from the current Microsoft XP. You can see changes in the screenshots placed below, and with a ?crystal mod' of the regular XP ?Luna'; mainly the change is about relaxing colours in blue tones.

• CrystalBlue XP Theme 1.0
  Windows XP sweet blue theme UXTHEME.DLL Pack required to use XP Themes

• Vista Visual Styles Pack 6.0
  Free Vista theme for Windows XP Change your old Windows XP theme to look like Vista using MSStyles

• The Moon Walk Screensaver 1.1
  The free screensaver, The Moon Walk, was created by RateMyScreensaver.com and contains 22 high resolution images of the Moon. The Moon is the only celestial body that human beings have orbited or landed on. The first man-made object to escape...