When I move the panel to top, the focus bar goes blue. In the bottom, everything works great but, when I move to the top, this happened. I use the "Papirus Dark" theme, but even with the Breeze theme, before I update the system to Plasma 5.4.3, this happened with it too. (Now the Breeze theme doesn't have the focus bar) The screenshot: http://i.imgur.com/EM16qEr.png Reproducible: Always Steps to Reproduce: 1. Change to Breeze desktop theme or download the Papirus Black theme (In the button with the star that is used to install new themes, I don't know how is write in english) 2. Goes to the Colors in the System Settings and change the Focus color (to Red, for example), apply 3. Move the panel to top Actual Results: The focus line below the applications on the task bar turns to blue. Expected Results: Doesn't change the color of the focus line, remaining like when the panel is in the bottom. The icon also stay bad placed when move the panel to top, it have to go a little bit to up.
Created attachment 95518 [details] The bug
The same in the 5.4.2 version of KDE.
I'm afraid the Breeze theme doesn't support color scheme configuration.
But the color scheme works when the panel is on the bottom of the screen.
Fwiw, this whole strip above the task item was removed in Plasma 5.5 and will get removed in your Plasma 5.4 too once you update your plasma-framework package to 5.16.
So implicitly fixed