How can I change fonts for Arduino App Lab 0.8.2?

Hello.
I can't read and write any characters in Korean. Korean fonts are presented to question marks in a box. The operating system is MacOS 13.8.2. (Old Intel iMac)
I tried to find out where I can change fonts, but I failed to find it.
Where are settings for this?

Hi @kungmo. I tried to reproduce the fault you encountered, but I was not able to do so.

I see boxed question marks in the sketch code in the screenshot you shared:

However, if I paste the Korean text μ•ˆλ…•ν•˜μ„Έμš”, 세상 μ—¬λŸ¬λΆ„! into the Arduino App Lab editor, it is correctly rendered:

I see boxed question marks in the "System Info" view in the screenshot you shared:

However, when I configured the language as Korean in my macOS settings and restarted my Mac, the contents of the "System Info" view was still in English (even though the language change did take effect in the macOS user interface, as expected).

There is a good chance my failure to reproduce the fault is caused by my ignorance in this subject area, since I don't have much experience using non-English locales. Can you provide any guidance I might be able to follow to reproduce the fault on my computer?

Being able to reproduce the fault is an important first step in me being able to possibly find a workaround for you, and for the Arduino App Lab developers to be able to perform and investigation, prepare a fix, and validate the prospective fix.