LXP is a desktop enviroment identical to Windows XP. LXP is a collection of different pieces of GNU software (icewm, xfe, idesk, etc) modified in order to look and feel identical to Windows XP. LXP has its own icewm themes and utility pack.
LXP WinXP Blue Theme (details: keyboard switcher & borders)
LXP WinXP Olive Theme (details: taskbar & notification area)
LXP WinXP Plain Theme (without task-button-border pixmaps)
LXP WinXP Silver Theme (details: start menu,taskbar, frames)
LXP WinXP Vista (a clon of the new Vista OS)