Could we get an option on the Breeze widget style settings to disable the focus outline on apps like Dolphin or Kate, i know it is the current way to know that the widget is focused but im willing to live without knowing just to get rid of the outline XD. It doesnt have to be on by default or anything, just having the option would be good.
Thank you for the bug report! Please note that Plasma 5.25.5 is not supported for much longer by KDE; supported versions are 5.24, and 5.26 or newer. If at all possible please upgrade to a supported version and verify that the bug is still happening there.
You can get rid of it by changing the colorscheme's "Focus Decoration" to gray in the "View" section. Other than that, it's currently a design element that's generally being ported away from to make apps feel more frameless, but that's not very immediate to implement for QWidgets apps like Dolphin.
Thank you!
Maybe in the meantime we should set that color to a neutral gray in Breeze?