Pitel added a comment.
I finally found what was wrong here: the background should not be black when button background color is light but the calculation introduced by D5036 <https://phabricator.kde.org/D5036> is wrong. My attempt to fix it is D11262 <https://phabricator.kde.org/D11262>. REPOSITORY R120 Plasma Workspace REVISION DETAIL https://phabricator.kde.org/D7537 To: pekkah, #plasma_workspaces, #plasma, #breeze, mart Cc: davidedmundson, Pitel, mvourlakos, ngraham, mart, bshah, #breeze, pekkah, #plasma_workspaces, plasma-devel, #plasma, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol