SUMMARY I'm using the Flatpak version and the UI is using Breeze Dark but the main window contents are glaringly white and not dark. 1. Open the application while using Breeze Dark theme Flatpak: KDiff3: 1.12.3 (64 bit) KDE Frameworks: 6.18.0 Qt: Using 6.9.2 and built against 6.9.2 Flatpak KDE Flatpak runtime (Wayland) Build ABI: x86_64-little_endian-lp64 Kernel: linux 6.16.7-200.fc42.x86_64 System: Operating System: Fedora Linux 42 KDE Plasma Version: 6.4.4 KDE Frameworks Version: 6.17.0 Qt Version: 6.9.1 Kernel Version: 6.16.7-200.fc42.x86_64 (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 3600 6-Core Processor Memory: 32 GiB of RAM (31.3 GiB usable) Graphics Processor: AMD Radeon RX 7600