Created attachment 178257 [details] gaps STEPS TO REPRODUCE 1. install willow 2. open a file properties window OBSERVED RESULT there is a gap on the sides EXPECTED RESULT maybe a line on the sides, like the ones seperating the buttons themselves from each other SOFTWARE/OS VERSIONS Linux: 6.13.2 KDE Plasma Version: 6.3.0 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.2 Wayland: 1.23.1
Unfortunately this isn't resolvable, and it's also not really a bug: when you use a window decoration theme/settings that uses expanded borders, then content in windows no longer touches the edge of windows. That's simply the way it is. If you don't want that to happen, then I'd recommend not using a window decoration theme with expanded borders, or else you can choose one that makes the borders visually distinctive rather than trying to make them blend in with the window background color.
I've found a workaround: under system settings > colors & themes > window decorations > next to 'configure titlebar buttons' set 'theme deafult' to 'no side windows borders'.