januz added a comment.
I can't +1 this hard enough. There's no point in having a line separating the titlebar from the window. For users that want their titlebars the same color as the window it just gets in the way, and for users that want a clear separation it adds nothing (since there's already the background color change to visually separate them). REPOSITORY R31 Breeze REVISION DETAIL https://phabricator.kde.org/D10429 To: fvogt, #vdg, #plasma, ngraham Cc: januz, rikmills, anemeth, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart