Scaorphswarerss [1] filed a merge request for winbox-xdg [2]: https://github.com/Scaorphswarerss/winboxhelpers/blob/master/winbox here a patch for better fonts. adopted for you /usr/bin/winbox
[1] https://aur.archlinux.org/account/Scaorphswarerss/ [2] https://aur.archlinux.org/pkgbase/winbox-xdg/
