workspace/plasma/containments/desktop/plasma_desktop_containment.kwinrules

   1 [General]
   2 count=1
   3
   4 [1]
   5 Description=Add Widgets dialog appears near the mouse cursor
   6 placement=UnderMouse
   7 placementrule=2
   8 title=Add Widgets
   9 titlematch=1
  10 types=32
  11 wmclass=plasma
  12 wmclasscomplete=false
  13 wmclassmatch=1
  14