SUMMARY In Breeze plasma theme, file: panel-background.svgz the thick-hint-right-margin is wrongly named to "thick-right-margin"
Fixed in 5.22
(In reply to veggero from comment #1) > Fixed in 5.22 Shouldnt be cherry-picked in 5.21.x family? MarginSeparator areas for ALL default vertical plasma panels will provide invalid margins otherwise.
(In reply to veggero from comment #1) > Fixed in 5.22 Isn't this in plasma-framework, not Plasma?
https://invent.kde.org/frameworks/plasma-framework/-/merge_requests/188 It's indeed p-f, so no need to cherry pick
(In reply to veggero from comment #4) > https://invent.kde.org/frameworks/plasma-framework/-/merge_requests/188 > > It's indeed p-f, so no need to cherry pick nice!