Seems to be a more advanced version of pidgin-latex. Also pidgin-latex doesn't work for many users. From the site, pidginTeX is a fast plugin for the instant messaging client Pidgin and uses mimeTeX or mathTeX to render LaTeX expressions in messages and chat. It is intended for math but mathTeX is fully compatible with LaTeX and any package can be used and mimeTeX also supports many other features. See Why use pidginTeX below. Reproducible: Always
Created attachment 168224 [details] x11-plugins/pidgintex-1.0.5.ebuild Here you go. Requires portage-2.2!
Created attachment 168226 [details] app-text/mathtex-1.01.ebuild Required for pidgintex
Thank you for report. This was added to the tree yesterday. Fixed.