rooty added a comment.
The shadow's the culprit! If you add the height of the shadow (assign it an id beforehand), then there's no white bar at the bottom :D REPOSITORY R123 SDDM Configuration Panel (KCM) REVISION DETAIL https://phabricator.kde.org/D19077 To: filipf, #plasma, #vdg, ngraham Cc: davidedmundson, abetts, rooty, plasma-devel, jraleigh, GB_2, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, sebas, apol, mart