Korean Username shows ???

Hi Deyson,
I am not sure that OpenSans font (which is default when you install and activate the plugin) supports all the characters in the world, such as Korean. You have to go to Google Fonts website and check/search for fonts that come with characters required.

https://fonts.google.com/ (e.g. check Noto font)

Also, on this page as of now you may find several fonts that specifically support Korean language:

https://fonts.google.com/earlyaccess

But, those fonts are not yet mainlined, so I will not include them yet.

You may edit plugin’s main file @ line #421 and replace it with URL for earlyaccess font (and select NOTO or simply hard-code the link, this will render plugin’s settings non-functional, but should fix your problem with missing symbols).

e.g. replace this segment in above line:

'https://fonts.googleapis.com/css?family=' . $admin_custom_font_family_format_url_param . ':400,700&subset=cyrillic,cyrillic-ext,greek,greek-ext,latin-ext,vietnamese'

with:

'https://fonts.googleapis.com/earlyaccess/notosanskr.css'

and it should work (remember to delete browser’s cache if you do not see any changes).

Above is just an example, you may try different korean fonts listed in the earlyaccess page simply by replacing above url.

P.S.
This plugin will only affect your admin dashboard, and your logged-in users dashboard, it will not change your theme/frontend appearance in any way. For that part, you need to use another plugin that will allow you to dynamically change frontend theme font, or to modify your theme manually (you can use same Noto Font from above post, but the implementation may be different!).

Hello and good day.

It seems it is a browder based issue. Thank you for your valauble time and have a great day!

Yes, modern browsers should automatically download sets if available.

Glad you’ve figured it out.
Regards