Azureus is a powerful, full-featured, cross-platform bittorrent client. The program's logo is the Blue Poison Dart Frog (Dendrobates azureus).

 

It is being shown on the Azureus webpage, as well as within the program's start-up splash screen, from which the project took its name. The name was given to the project by co-creator Tyler Pitchford, who uses the Latin names of Poison Dart Frogs as codenames for his development projects.