offset bar group in the case of a non-ordinal scale to center it
offset bar group in the case of a non-ordinal scale to center it

valdobc/volt-teste,correctiv/Chartbuilder,valdobc/volt-teste,nowthis/Chartbuilder,nowthis/Chartbuilder,Quartz/Chartbuilder,Quartz/Chartbuilder,correctiv/Chartbuilder