Created attachment 171722 [details]
A screenshot of the bug

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SUMMARY
The manual "Choose Style..." font selection boxes in the Digital Clock are white when in dark mode. As the text is also white because of dark mode, you can't read the fonts that aren't highlighted. 

STEPS TO REPRODUCE
1. Make sure the Global Theme is Breeze Dark
2. Open the "Digital Clock Settings". I opened it by right clicking on the clock and clicking "Configure Digital Clock"
3. Change the Text Display from Automatic to Manual
4. Click the Choose Style... button to open the Font dialog

OBSERVED RESULT

The selection boxes have a white background and and white foreground. 

EXPECTED RESULT

The selection boxes have a dark background and white forground color, so you can see the font names


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Fedora 40
(available in About System)
KDE Plasma Version:  6.1.2
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION