Created attachment 1480070 [details] screenshot After upgrading to Fedora 29, the systray icons have partial black backgrounds. See attached screenshot. xfce4-panel-4.13.3-20.fc29.x86_64
Created attachment 1480080 [details] screenshot 2 They also appear to be damaged after animations.
This goes away with compositor enabled.
This is a well known bug in the graphics driver because those systray icons get rendered specially in the framebuffer of your GPU. It's randomly happened also with Plasma 5.
This is a direct issue with the compositor ... :(
Proposed as a Freeze Exception for 29-beta by Fedora user raphgro using the blocker tracking app because: Assuming the Xfce Testcase [*] applies. Not all icons are correctly displayed with the default Fedora theme. There's an update in preparation.
[*] https://fedoraproject.org/wiki/QA:Testcase_Xfce_settings_appearance
Closing as duplicate of 1624353. It is easier to keep track of one bug. *** This bug has been marked as a duplicate of bug 1624353 ***