The X Window System (more commonly called X11) on Mac OS X provides significant opportunities for Mac OS X developers. Based on the open source XFree86 project, X11 for Mac OS X is compatible, fast, and fully integrated with Mac OS X. It includes the full
Dzen is a general purpose messaging, notification and menuing program for X11. It was desigend to be scriptable in any language and integrate well with window managers like dwm, wmii and xmonad though it will work with any windowmanger.
Have you noticed that the occasional website you visit has sharp, pixelated fonts? The problem is that websites like this are improperly designed and are forcing the use of Helvetica, which does not anti-alias (sub-pixel font smoothing). The fix for this is to force Helvetica fonts to change to the default sans-serif font, which can be easily anti-aliased.