Created attachment 108432 [details]
Screenshot of new system settings
When opening new system settings and using a dark theme I can barely see headers and labels on the main page, because it uses black text. I believe that system settings should be using color based on user's theme to make sure that the texts are always visible.
Is this is Kirigami bug?
No, this is a systemsettings bug, in sidebar/package/contents/ui/CategoriesPage.qml. The headers are implemented as list items with the "enabled: false" property, which causes the text to become much lighter. This seems like an abuse of the system, and precludes fine-grained control of the text color. It would be better if the headers were somehow styled as actual headers, not disabled items.
*** This bug has been marked as a duplicate of bug 384638 ***