Created attachment 188589 [details] screenshot SUMMARY STEPS TO REPRODUCE 1. Open Kalzium 2. Switch Electro-negativity 3. Color difference in group are visually not recognized OBSERVED RESULT colors that are too faded to distinguish between them EXPECTED RESULT color shades should be sufficiently distinguishable within a group, as was the case in previous versions of the application SOFTWARE/OS VERSIONS Operating System: Kubuntu 25.10 KDE Plasma Version: 6.5.5 KDE Frameworks Version: 6.20.0 Qt Version: 6.9.2 Kernel Version: 6.17.0-8-generic (64-bit) Graphics Platform: Wayland