increase opacity of buttons, fix for dark backgrounds like header in public share, fix #1188
increase opacity of buttons, fix for dark backgrounds like header in public share, fix #1188

bluelml/core,pollopolea/core,xx621998xx/server,jbicha/server,cernbox/core,lrytz/core,lrytz/core,pixelipo/server,jbicha/server,owncloud/core,owncloud/core,lrytz/core,andreas-p/nextcloud-server,endsguy/server,jbicha/server,Ardinis/server,bluelml/core,andreas-p/nextcloud-server,bluelml/core,nextcloud/server,whitekiba/server,Ardinis/server,michaelletzgus/nextcloud-server,sharidas/core,endsguy/server,pmattern/server,IljaN/core,cernbox/core,endsguy/server,phil-davis/core,IljaN/core,pixelipo/server,Ardinis/server,sharidas/core,pmattern/server,owncloud/core,michaelletzgus/nextcloud-server,cernbox/core,whitekiba/server,michaelletzgus/nextcloud-server,whitekiba/server,andreas-p/nextcloud-server,xx621998xx/server,nextcloud/server,cernbox/core,Ardinis/server,nextcloud/server,bluelml/core,pollopolea/core,pixelipo/server,jbicha/server,IljaN/core,Ardinis/server,sharidas/core,pixelipo/server,jbicha/server,pollopolea/core,andreas-p/nextcloud-server,pmattern/server,pmattern/server,whitekiba/server,pollopolea/core,IljaN/core,owncloud/core,owncloud/core,lrytz/core,pmattern/server,endsguy/server,xx621998xx/server,xx621998xx/server,cernbox/core,whitekiba/server,michaelletzgus/nextcloud-server,lrytz/core,nextcloud/server,pixelipo/server,endsguy/server,xx621998xx/server,sharidas/core,bluelml/core,IljaN/core,andreas-p/nextcloud-server,pollopolea/core,sharidas/core