Describe the bug
By default this addon displays everything in a font "Friz Quadrata TT". It is an ASCII font or so, so every Wchar displays as a box.
Addon provide a option to select existing fonts. But doesn't give any reponses when clicking the font. The window, the dropbox, everything just stays open as the same as before clicking. And the font doesn't change.

To Reproduce
Just open the addon UI in Asian clients. Click the gear icon, then select font.

Expected behavior
It is supposed to selecte a font, thus change everything in the window.

Screenshots

Additional context
Add any other context about the problem here.

Thanks for the report. I should be able to get a fix out tomorrow so that the default font is one supported by the users client locale and non-supported ones don't break the addon.

A fix has been released.