I've tried looking through the documentation, and I feel like maybe I am just not understanding the types in Color.jl well enough, but say I have a scatter plot, how do I
a) Remove the border b) Make the points opaque? Looking at http://gadflyjl.org/geom_point.html I am not quite sure why the border is white in some plots and black in others. Is it because of the continuous color scale? Best, Patrick
