Created attachment 129564 [details]
screenshot of ksysguard showing too dark fonts

SUMMARY
Some link texts inside applications are too dark with breeze-dark. KSysguard isn't the only UI affected by this, but it should serve as a popular example.

STEPS TO REPRODUCE
1. Set theme to breeze-dark.
2. Open KSysguard.
3. Right click on a process and choose to show detailed memory information.

OBSERVED RESULT
The chosen color for some text elements in the summary about the process' detailed memory consumption is a very dark blue. It's barely readable on top of the dark gray breeze-dark background (see attached screenshot).

EXPECTED RESULT
Those text elements should be much brighter to improve readability.


SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.19.1
KDE Frameworks Version: 5.71
Qt Version: 5.15

ADDITIONAL INFORMATION
I changed the breeze-dark theme only slightly to make the title bars darker, otherwise everything is unchanged and my change has no effect on this issue.