It's provided by Decoration::settings() instead and not valid before
::init was invoked. Thus init is implemented and all the initialization
code is moved to init.
All corners should be round if not maximized. This is now done by
setting better clip regions to restrict the rendering to the
currently relevant area. So we don't render the background behind
the title area, instead the title area also renders a rounded rect.
This new decoration plugin requires the new API which needs to
be built from:
kde:kdecoration
To view the decoration use the tool available in
kde:kdecoration-viewer
It is not yet integrated into KWin. One cannot use the decoration yet.