AEditor is a programmer's editor for Windows,
Unix, and Mac OS X that relies on the fox toolkit.
It can do syntax coloring of Ruby and C++ files.
It's easy to change the color theme. Most things
are customizable. It is written in Ruby and is
carefully unit-tested (it has 421 tests). It is
written in only ~5500 lines of code, so it should
be easy to grasp and extend.
