Based on a layout built with the YAML CSS Framework

Currently using the Prototype JavaScript library

Message Box CSS found on Janko at Warpspeed

Buttons in Message Boxes from Knob Toolbar Icons by Cocoa Grove

Spinner Control for Prototype by Ken Snyder

Ajax Loading GIF Animation from ajaxload.info

The USCII-5x7-ENGLISH-C0 specification was generated using a single script in the REBOL language. If you want to look at how clean the specification and the code that manipulates it is, take a look at the source on GitHub.

Though the primary implementation of REBOL is proprietary, I do think it is a very interesting spin on "modern LISP"—and I have written several articles about it.