ngraham added a comment.
That dimming effect might be too subtle on a brightly colored app icon. How about dimming the black volume icon instead of or in addition to the app icon? REPOSITORY R115 Plasma Audio Volume Applet REVISION DETAIL https://phabricator.kde.org/D15418 To: broulik, #plasma, #vdg Cc: ngraham, plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart