The idea of a distraction-free tool with distraction is delightful. love it (*<_ *
The tool just needs a little more polishing to be really usable (impossible to save on firefox, distractions that appear offsceen, a broken-link image on title screen (see picture bellow), and maybe rework the menus a little to make it more ergonomic (validation before resetting everything, more obvious way to leave the options, etc.)