As I am trying to get started with Ruby at the moment this is extremely interesting :

Arduino IDE Meets Ruby
Scripting languages have evolved a lot in the recent years. Ruby in particular, has had such a significant impact, that there are entire teams dedicated to maintaining it's visual identity across the web.

Designed by Tom Schaub is a widely used logo for the ruby programming language.

Sporting some flashy ruby icons, is the Scripting tab in the Arduino IDE. Upon startup, a listing of your ruby script files is generated from your Sketchbook directory.

[From Liquidware Antipasto: Arduino IDE Meets Ruby]