Unfortunately, no. There is no system in compiz to do this as the solution metacity is using is considered a hack by the compiz developers. Writing such a system would touch every plugin that shows a thumbnail along with large changes to compiz core so would not be suitable for doing in Ubuntu.
Unfortunately, no. There is no system in compiz to do this as the solution metacity is using is considered a hack by the compiz developers. Writing such a system would touch every plugin that shows a thumbnail along with large changes to compiz core so would not be suitable for doing in Ubuntu.