Hesperides is an adaptation for Mac OS X of Didier Willis' Dragon Flame, a dictionary for Sindarin (the grey-elven language, invented by J.R.R. Tolkien). It integrates Didier's Sindarin dictionary with a state-of-the-art interface and the Narmacil engine (to display the words using Tengwar).
The Interface Window Manager uses Objective C and the GNUstep libraries to provide strictly minimal functionality, with all additional features in bundles called IWMComponents. It uses the GNUstep defaults database for user settings such as mouse button configuration, key bindings, and initial color settings, and is optimized for use in a strictly GNUstep environment.