I’m using WP 3.6 as well and this plugin isn’t working with me either. As soon as I press the Font Settings button it shows a revolving graphic in the top left corner that indicates the plugin is loading, but it keeps doing just that and the Font Settings are never really opened. It doesn’t matter if I do this in my homepage, or in my dashboard.
I haven’t got any other plugins activated yet.
So, since the info page on this plugin states it is compatible up to 3.5.2. my guess is that it’s just not been updated for WP 3.6 yet.
Too bad actually, it sounded like a really useful tool….
