See screenshot.
Created attachment 87971 [details] Screenshot
What happens if you click the "Set Effect..." buttons?
(In reply to Christoph Feck from comment #2) > What happens if you click the "Set Effect..." buttons? Hi Christoph. When I click on 'Set Effects' button, a dialog is open. I can change options, but no preview in main window and dialog, like in KDE4. Sorry for wrong bug summary. Screencast with the problem: https://www.youtube.com/watch?v=11s0LCNCTCs
Can you confirm this issue is with the Breeze icon theme, but works correctly with Oxygen theme?
(same for bug 337822)
(In reply to Christoph Feck from comment #4) > Can you confirm this issue is with the Breeze icon theme, but works > correctly with Oxygen theme? Yes, works with Oxygen icon theme.
There have been a couple of fixes for icon KCM for Breeze and this works now