Password field with white input color after applying Plasma Settings to SDDM theme and overriding default settings. It can also be observed when trying to select another user.
STEPS TO REPRODUCE
1. Select Breeze Dark theme
2. Select Breeze theme for SDDM
3. Apply Plasma Settings to SDDM theme
White colored password input over white background field.
Black input color over white background field for a better UX.
Operating System: Arch Linux
KDE Plasma Version: 5.24.2
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2
Kernel Version: 5.16.10-arch1-1 (64-bit)
Graphics Platform: X11
*** This bug has been marked as a duplicate of bug 440957 ***