I had a Scrivener hiccup and now...

…all the fonts are ugly.

Before the hiccup all of the fonts – menus, drafts and research – were nice and readable.

Now, they’ve gone to hell. How can I “reset” so I have the old fonts back and it’s not a pain on my eyes?

I’ve attached a file so you can see the ugliness to which I refer.
Scrivener Capture 20160713.JPG