Hi, I have re-built CoolReader3 from the most recent sources (3.0.56-7). I am not sure how this version differs from the one Denis (Goryachev) has built, but it supports at least stylesheets (font weights etc.), which was not available in that version. Unzip this file to the sd card, and reboot. Please check it out, but be aware that it's experimental software. It works for me though M.