Description of problem:
Requesting the windows which shows the volume control cause bug: background of the windows instead of being monotone gray color is covered by a matrix of unexpected icons. In other words, background must be plain gray color, and on the foreground must be volume controls 

Version-Release number of selected component (if applicable):


How reproducible:
Install Fedora 23 with KDE. Click on the volume control icon on the system tray.

Steps to Reproduce:
1. Click on icon of sound volume in the system tray

Actual results:
Window appears with messed background and volume control which is not clearly visible.  

Expected results:
Windows appears with plain gray background and volume controls which can be clearly seen.

Additional info:
This behaviour is a system-wide, for example, it  occurs also when clicking on the main menu  (the left-bottom "f" button) and actual results are the same: windows appearance with noisy background and awfully seen window controls.