enabling mixing non-opaque vector geometries with opaque external graphics on the same vector layer (closes #873) git-svn-id: http://svn.openlayers.org/trunk/openlayers@4114 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
enabling mixing non-opaque vector geometries with opaque external graphics on the same vector layer (closes #873) git-svn-id: http://svn.openlayers.org/trunk/openlayers@4114 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf