https://bugs.winehq.org/show_bug.cgi?id=52627
--- Comment #6 from GizMo79 gizmo_1979@yahoo.it --- (In reply to Carlo Bramini from comment #5)
Probabilmente, LTSpice sta usando U+03A9 "GREEK CAPITAL LETTER OMEGA" invece di U+2126 "OHM SIGN". Sono identici, ma negli attuali font WineTahoma manca U+03A9. La riparazione dovrebbe essere facile, con FontForge รจ sufficiente copiare U+2126 e incollarlo su U+03A9.
I don't know, it may be, I've never edited a font. However by installing the tahoma2 font the appearance of ltspice is better, the fonts of all the menus seem cleaner and without jaggies