This is a latest official EQuilibrium window decoration for KDE users.
Theme without edge, but there are min / max / close buttons, also the windows title is back.
Note: For the best experience, first download KDE Look and Feel "EQuilibrium KDE edition Level One Pack eQ" and completely change the Desktop (check Use Desktop Layout from theme) and then give a this new windows decoration.
Important: Desktop Effects => Blur (off)
I hope you will like it and report your impressions.