deleted /opt and fonts seem to have been degraded.

[sfalcon1]

I was cleaning up a mounted drive to use for storage and deleted the /opt directory by mistake.   Does /opt have anything in it?  It does not seem like anything happened, except I do notice that some fonts on my screen are not readable now.  Not for sure if the font issue  is related or not.   My debian install and another ubuntu install both don't use /opt so I am hoping no damage has been done.