"Calmira XP is a shell for Windows 3.1, based on Calmira II, that gives
you the Windows XP look-and-feel. Some of the features: Logonscreen
(multiple users), taskbar, themeable windows, and even (experimental)
System requiremens are about the same of the regular Calmira (80386
with 4 MB of RAM), but because of the better colors you need a graphics
adapter which can do at least 32000 colors (15 bits)."