I am at my wit's end trying to delete a custom I created in Powerpoint 2011 for Mac. I can find references to how to delete a customer theme for Powerpoint 2007 for PC; for Powerpoint for Mac assuming I am using Lion (didn't work); or other combinations. I am running Yosemite and Powerpoint for Mac 2011 version 14.4.7.

Can anyone else? I probably made a mistake by creating a "theme" instead of a "template", but now I have the theme from hell.

Thanks.