id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	state
3431	set opacity on layer divs, not on tiles and markers	ahocevar	euzuro	Currently, the setOpacity method is quite expensive, because it sets the opacity on all tiles or markers. It is sufficient to set it on the layer div. This is another improvement factored out from #3061. It does not depend on any other open tickets.	feature	reopened	minor	2.13 Release	Layer	SVN