Using Trellis, am successfully setting up a number of panels (25) in which I
have two box and violin plots.

I would like to colour - one plot as RED and the other as BLUE (in each
panel).  I can do that with the box plots, but the violin density areas just
take on one colour.

My basic call is as follows:

bwplot(rmsd ~ file | code,
    data=spread_data.filtered,
    panel = function(..., box.ratio){
        panel.violin(..., col = c("red", "blue"), cut = 1, varwidth = FALSE,
box.ratio = box.ratio)
        panel.bwplot(..., fill = c("red", "blue"), box.ratio = .1, pch="|")
    },
    par.settings = list(plot.symbol = list(pch = 21, col = "gray"),
box.rectangle = list(col = "black"), box.umbrella = list(col = "black"))
)

The boxplots are actually coloured one in red and one in blue, but the
violin area for all my graphs is in red.

Any ideas?

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