Also, it seems that on lunar, enabling High Contrast results in symbolic/highcontrast icons from /usr/share/icons/HighContrast and/or /usr/share/icons/Adwaita being used; whereas on kinetic, enabling High Contrast uses the symbolic icons from /usr/share/icons/Yaru (I believe this would be the expected behaviour). So, indeed a regression in lunar.
Also, it seems that on lunar, enabling High Contrast results in symbolic/ highcontrast icons from /usr/share/ icons/HighContr ast and/or /usr/share/ icons/Adwaita being used; whereas on kinetic, enabling High Contrast uses the symbolic icons from /usr/share/ icons/Yaru (I believe this would be the expected behaviour). So, indeed a regression in lunar.