Greetings, Ever since Plasma 5.8 the notification theme has been broken for me. Namely, the theme is identical to the one XFCE uses (ZOMGponies or perhaps Greybird?). The theme stays the same regardless of which desktop theme I choose and will only change its color. You can see what it looks like in the following screenshots: Notifications in Plasma: https://i.imgur.com/8kHfh2D.png Notifications in XFCE: https://i.imgur.com/y5gbmjP.png Reproducible: Always Steps to Reproduce: 1.update to Plasma 5.8 2. 3. Actual Results: Notification theming was broken and some XFCE theme is used. Expected Results: I believe it looked something like this before: http://www.hecticgeek.com/wp-content/uploads/2015/03/New-gorgeous-notifications-of-KDE-Plasma-5-KaOS-2015-02.png Distro: Manjaro Linux Current Plasma version: 5.8.2
Because you're running xfce's notification viewer and only one app can show notifications. If you want Plasma notifications, then disable the XFCE one.