All of the above answers are correct, but you have lost the configuration settings.
But if your themes or IDE-only fonts are changed or some UI-related issues and you want to restore the default theme, just delete
$ {user.home} /. IntelliJIdea13 / config / options / options.xml
while the IDE is not running, after the next reboot, the IDE theme will default to reset.
Pankaj Shinde Apr 09 '14 at 4:30 2014-04-09 04:30
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