Change Details

--when the containment background hints are updated then the panel shadows should be also. In case the background hints point to NoBackground the panel shadows should be removed and in case they point to DefaultBackground they should be drawn again --PanelShadows::removeWindow has no place in updateEnabledBorders because the window still lives. When removeWindow is executed it is unregistered from PanelShadows and in order for setEnabledBorders to work again afterwards we need to execute from start PanelShadows::addWindow

--when the containment background hints are updated then the panel shadows should be also. In case the background hints point to NoBackground the panel shadows should be removed and in case they point to DefaultBackground they should be drawn again --PanelShadows::removeWindow has no place in updateEnabledBorders because the window still lives. When removeWindow was executed before it was faulty unregistered from PanelShadows and in order for setEnabledBorders to work again we should need to execute from start the PanelShadows::addWindow function

--when the containment background hints are updated then the panel shadows should be also. In case the background hints point to NoBackground the panel shadows should be removed and in case they point to DefaultBackground they should be drawn again --PanelShadows::removeWindow has no place in updateEnabledBorders because the window still lives. When removeWindow iwas executed it isbefore it was faulty unregistered from PanelShadows and in order for setEnabledBorders to work again afterwards wewe should need to execute from start the PanelShadows::addWindow function