chemoelectric says

A text roman with standard and discretionary ligatures, class-based kerning, and a very few alternates. (Also a "CAPS" feature which is there for me to use in spacing and kerning all-caps text. That could go away in future versions.)

Version 2.2 differs from the previous version mainly in having better hinting.

The name is pronounced "pro-tsee-O-no" and is Esperanto for either "raccoon" or the star Procyon. Naturally I prefer to think of this font as a raccoon.