I am currently trying to put a boxplot below a jitter, and want to color the boxes in a lighter shade.
So in opposite to this post https://stackoverflow.com/a/9236205/1842673 I just could add a '+' instead of the '-' in the line
cols_dk <- rgb2hsv(col2rgb(colour)) - c(0, 0, 0.2)
However, since as mentioned in the last answer on that page "proto" was discontinued, I can not seem to get this to work. Is there another (new) way to reach that point?
I also tried to just add
+scale_color_hue(l=80)
Directly after the layer definition, however, this then applies to the whole plot (also to the jitter layer.
In this request https://github.com/hadley/ggplot2/issues/723 a more general solution has been asked for, so if there is someone here, who could help with that, it would be a nice thing as well...
Any suggestions?