highlight union when contiguous
highlight union when contiguous

shuizhongyueming/rangy,timdown/rangy,etodd/rangy,brymacto/rangy,sashless/rangy,emil-mi/rangy,djbuch/rangy,sashless/rangy,brymacto/rangy,timdown/rangy,lpsBetty/rangy,zimme/rangy,GerHobbelt/Rangy,KamiHQ/rangy,shuizhongyueming/rangy,GerHobbelt/Rangy,KamiHQ/rangy,wotzisname/rangy,yangdm2015/vue-rangy,etodd/rangy,yangdm2015/vue-rangy,emil-mi/rangy,wotzisname/rangy,zimme/rangy,izhan/rangy,djbuch/rangy,izhan/rangy,lpsBetty/rangy