Application-specific window decoration theme

[micmalti]

On Plasma 5.27.10, I’m trying to create a KDE rule that changes the title border of Konsole from the default window decoration theme to its dark variant. Setting the ‘Titlebar Color Scheme’ property to a different colour scheme doesn’t work. The title border colour is only responding when a different window decoration theme is selected, but such a property is seemingly absent.

Is it even possible to set an application-specific window decoration theme in KDE?

[dzon]

You could use a kvantum theme like QT_STYLE_OVERRIDE=Kvantum “theme” konsole. There are several posts about this.

[Franken14679]

@micmalti:

Please take a look at the Kwin “ Window Rules” – <https://docs.kde.org/stable5/en/kwin/kcontrol/windowspecific/index.html>

• It’s located in the “System Settings” → “Workspace” → “Window Management” → (application specific) “Window Rules”.

[dzon]

Window rules only have a titlebar option in this regard. For a specific style, you need a qt override.
Here’s an example of a different color scheme set with a window rule.

And this is with some random kvantum theme. Not sure if it’s only the titlebar or the entire application what is wanted.

This is both

[micmalti]

Thank you for your contribution. I know it’s been awhile but I’d like to let you know that I’ve since resolved the issue by sticking with the default Breeze decoration theme since it (unlike my previous theme) allowed me to use a KWin rule to change the titlebar colour scheme.