When I am using geom_bar I get these white slashes through the legend keys. I cannot figure out how to remove them.
ggplot(diamonds, aes(clarity, fill=cut)) + geom_bar()

I have tried using opts(legend.key = theme_blank()) but with no luck.

Any suggestions would be much appreciated.

I am using R vers. 2.15.0 and ggplot 0.9.1, win xp

Best wishes
Jonas Hal

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