Fr accented characters not recognized by the screen

Hello,

Another question. I have a display problem on the LCD screen of my Alfawise U30 Pro (DGUS_LCD_UI_RELOADED).

I use French language and the accented characters (é, è, ê,...) are not recognized by the screen. To work around the problem, I removed all these characters from the language_fr.h file (eg "Butées" --> "Butees").

This works but is there a cleaner way to do this without modifying this file?

Thanks