--following plasma approach and use always
even for !compositing mode the widgets/panel-background
svg file. This way when Latte and Plasma panels are
combined there is uniformity between them.
BUG: 406597
--now config windows are masked properly in order to
accessible to all of their areas. By design the config
windows are trying to be below the main view, this is
why masking is needed in order to work properly and not
having areas that can not be clicked/accessed because
of the top Latte View
Michail Vourlakos