"Xwin" because it's themed around the X Window System's 6x13 font.
This is a clone of 6x13 reduxMain text font used in Star Wars: X-Wing, (C) 1993 LucastArts Entertainment Company, and Star Wars: TIE Fighter, (C) 1994 LucasArts Entertainment Company, as well as on the main menu screen for Agents (players) and Missions (game levels) for Star Wars: Dark Forces, (C) 1995 LucastArts Entertainment Company.