I just saw that after the updated WP themes also many GRAV themes have been updated about ten days ago:
Now only the Joomla themes need some love and need to be updated to the latest J5 and Gantry versions.
This would make many Joomla users here incredibly happy.
So Mat, Pavel, whoever... go ahead and make all those waiting users here smile again.
Also you would surely be granted a place in paradise ...