kwin has those as well, since KDE 4. https://ubuntulife.files.wordpress.com/2009/07/oxygen-tabs.png https://ubuntulife.files.wordpress.com/2009/07/oxygen-tabs.p

kwin has those as well, since KDE 4. https://ubuntulife.files.wordpress.com/2009/07/oxygen-tabs.png https://ubuntulife.files.wordpress.com/2009/07/oxygen-tabs.p... [edit] Actually, it seems it's still missing in KDE SC 5 :(