How to remove transparent 1px-height lines above and the panel in Plasma 5 (Ubuntu)? The background picture is visible through it and it looks crappy. These lines are appearing in any theme and any panel size.
1 Answer
This was a bug that has since been fixed in KDE Frameworks 5.48.
https://bugs.kde.org/show_bug.cgi?id=389215
As a workaround, you can turn compositing on.