Unflattener is a Python module and a command line tool that help you make normal maps for 2D sprites and other graphics (e.g., for dynamic lighting in video games). It was inspired by Sprite Lamp.
EvilPixie is a graphics and animation editor designed for doing pixel art. It is heavily inspired by the classic Amiga paint program, Deluxe Paint.
A lightweight library containing a number of classes and functions to ease the task of programming GTK+ programs with C++ in POSIX environments.
A cross-platform Java application wrapper for creating Windows native executables.