st: legend border

[Thomas Gschwend <Thomas.Gschwend@mzes.uni-mannheim.de>]

I am working with Stata/SE 9.2 and try to produce graphs with a legend. 
But I need to remove the borders. I tried -region(lcolor(none))- and 
-region(lstyle(none))- without success. However, a tiny greyish border 
still remains.

Here is an example:

sysuse uslifeexp, clear
#delimit ;
line le_male  le_female year, 
legend(region(lcolor(none)))
graphregion(color(white));
#delimit cr

#delimit ;
line le_male  le_female year, 
legend(region(lstyle(none)))
graphregion(color(white));
#delimit cr

Does anybody have an idea of how to completely remove the borders of 
such a legend?
Any help is greatly appreciated,
Thomas

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