SAS Software question

I need to create a linear regression plot using the REG statement in PROC SGPLOT with height as the x variable and weight as the y variable. Make the symbols circles that are filled in, but assign different colors according to the sex variable using the GROUP option in the SCATTER statement. Now that the data is grouped, separate regression lines will be plotted for each sex. Also display the confidence band for regression lines and set the transparency level of the band to be 0.5;

This is what I've got but the transparency is not acting on the confidence band proc sgplot data=sashelp.class; reg x= height y=weight / group=sex markerattrs=(symbol=circlefilled) CLM transparency=0.5; run;