Hi Peter,
Please take a look at the following documentation links which describe how to set the style and other properties of the legend and title :
http://helpcentral.componentone.com/nethelp/C1LineChartWijmo/#!Documents/legend.htm
http://helpcentral.componentone.com/nethelp/C1LineChartWijmo/#!Documents/headerandfooter.htm
Regards
Abdias
