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So this is the folder selection dialog (this album list is from a Korean singer) This next screenshot is the track listing after selecting a album/folder from a Japanese band. (this is the list on the main window) ---------------------------
As a test...
- I tried using LANG=ja_JP.UTF-8 or ja_JP.SHIFT_JIS before "wine my-app-here.exe" and more than half of the characters are still showing up as squares. Since I also have Chinese/Korean albums, I think this is not the ideal solution since I do not want to switch locales/languages.
- I ran "winetricks allfonts" which seems to install all Windows fonts. I'm still getting the same problem.
- I ran winecfg => Desktop Integration => Appearance and I changed the fonts (if option is available) of all items to "Noto Sans CJK JP". I'm still getting the same problem.
- I checked mp3tag and it does not have font settings like other apps (example: foobar2000).
- As a another test, I installed foobar2000 and it automatically selected "Noto Sans CJK JP" as the default application font. (the track/album listing shows the correct characters. It's only the folder selection dialog that is wrong. I'm guessing that uses built-in "Windows" dialog.)