faridb added a comment.
The highlight effect provided by `PlasmaCore.IconItem` is only visible when used with dark or colourful icons: F6746966: Mute5.gif <https://phabricator.kde.org/F6746966> F6746965: Mute4.gif <https://phabricator.kde.org/F6746965> I also tried reducing the opacity of the icon, which results in the following effect: F6746972: Mute3.gif <https://phabricator.kde.org/F6746972> REPOSITORY R119 Plasma Desktop REVISION DETAIL https://phabricator.kde.org/D19822 To: faridb, #plasma, #vdg, ngraham, hein Cc: mart, hein, filipf, mvourlakos, ngraham, broulik, plasma-devel, jraleigh, GB_2, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol