KDE "Display and Monitor" setting greyed out after 35 -> 36 upgrade?

I just upgraded to 36 from 35. The KDE “Display and Monitor” setting are greyed out, and the settings from 35 were not preserved. Did the settings controls move, or do I need to reinstall something so I can get my displays lined up properly?

SOLUTION: The app is “kscreen.” To correct this problem, either remove and reinstall kscreen, or install kscreen if it is missing.