Hi, this is my setup on KDE, as far as the theme goes, its Aritim Dark. But Iβ'd really like to have the border around the desktop application windows to be distinguishable by having an opposite color then the theme.
The window borders and title bar together form what we call the window decoration. In order to have it in a different color, you must select a different window decoration inβ¦
System Settings β Appearance β Application Style β Window Decorations
The window border size can be selected via the drop-down list at the bottom of that page.
Do however note that this may not work if you have applied a global theme, because global themes override the style settings for the individual components of the user interface. This is why I personally always recommend applying the theming for those individual components manually instead of using a global theme.