Dear Moodlers,
There is a slight issue with the course category icons now where I've improved the code such that the boxes are all the same size when the category names get bigger. The solution is small and will be in the next version, but instead of releasing that now, I'll wait to see if there are any more issues. In the mean time, please see: https://moodle.org/mod/forum/discuss.php?d=340945&parent=1374215.
Cheers,
Gareth