SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** The Breeze GTK theme still has the 1px white border at the top, which was removed from the Qt theme. GTK and Qt apps now look inconsistent. STEPS TO REPRODUCE 1. Have Plasma 5.26.90 2. Open a GTK app that uses CSD such as Lollypop, or Firefox with the title bar disabled OBSERVED RESULT GTK apps that use CSDs / header bars still have the 1px white border at the top EXPECTED RESULT The GTK theme should match the Qt theme, which no longer has this border SOFTWARE/OS VERSIONS Operating System: Fedora Linux 37 KDE Plasma Version: 5.26.90 KDE Frameworks Version: 5.102.0 Qt Version: 5.15.8 Kernel Version: 6.1.7-200.fc37.x86_64 (64-bit) Graphics Platform: X11 Processors: 16 × AMD Ryzen 7 3800X 8-Core Processor Memory: 31.3 GiB of RAM Graphics Processor: AMD Radeon RX 570 Series Manufacturer: Gigabyte Technology Co., Ltd. Product Name: X570 AORUS MASTER System Version: -CF ADDITIONAL INFORMATION
Created attachment 156364 [details] example screenshot I confirm this for plasma 5.26.4
Updating as this is still the case in Plasma 6.0