How to make window titlebars transparent?

[Beerislife]

There are some tips here but not much detail:

https://techbase.kde.org/Development.../Plasma5/Theme

[chimak111]

There are some tips here but not much detail:

https://techbase.kde.org/Development.../Plasma5/Theme

Nice! Bookmarked.

[kubicle]

There are some tips here but not much detail:

https://techbase.kde.org/Development.../Plasma5/Theme

There is a link in there for more details:
https://techbase.kde.org/Development...5/ThemeDetails

This is of course just for the plasma theme, and does not affect window decorations (borders), which are handled by kwin themes

[Campeador Cid]

Thanks @beerislife and @kubicle for the Plasma 5 links. I'll check them out and at the very least they'll contibute to my general Kubuntu education.