Thanks to last david modifications (fixing an important bug for me), i just jump to kde decorator. But i always have two bugs: 1) I've got some artefacts with wobbly windows at window/decoration junction. Better visibility of this bug with polyester theme and unified decorator/window color like on this screenshot: http://hibbert.univ-lille3.fr/~cbellegarde/kde.png This doesn't happen when using Alt + click to move window ! I think the white line on konqueror maximised window is the same bug: http://hibbert.univ-lille3.fr/~cbellegarde/kde1.png And i get to have a screenshot of the bug: http://hibbert.univ-lille3.fr/~cbellegarde/kde2.png 2) With plastik, maximised window bar is misplaced: http://hibbert.univ-lille3.fr/~cbellegarde/bug_plastik.png