Regression from https://invent.kde.org/plasma/breeze/-/merge_requests/342
A possibly relevant merge request was started @ https://invent.kde.org/plasma/breeze/-/merge_requests/364
Git commit 2e752068c4b97d7e5eaaf86422c10d136e23d45a by Carl Schwan. Committed on 07/11/2023 at 12:48. Pushed by carlschwan into branch 'master'. Fix QQC2 Scrollview having no background M +3 -2 kstyle/breezestyle.cpp https://invent.kde.org/plasma/breeze/-/commit/2e752068c4b97d7e5eaaf86422c10d136e23d45a
Fixed with that commit.