Fix sidebar labels being unreadable when selected or hovered over
Summary:
BUG: 382139
Previously these labels were white-on-light-blue with light themes; now they use the correct theme color property, and become black appropriately.
Test Plan:
Tested on KDE Neon (dev unstable). Verified that with the default Breeze color scheme, tab text is more readable when hovered over and then active but not in focus. See before and after:
Also tested these changes with all standard color schemes as well as the Oxygen theme to make sure that there were no visual regressions.
Reviewers: aacid, Okular, KDE Applications, broulik, sander, rkflx
Reviewed By: aacid, Okular, KDE Applications, rkflx
Subscribers: rkflx
Tags: Okular
Differential Revision: https://phabricator.kde.org/D7793