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See also
Color guide used to pick colors manually: http://sape.inf.usi.ch/quick-reference/ggplot2/colour
Jeff Leek, Roger Peng, and Rafa Izarry blog: https://simplystatistics.org/
Color guide used to pick colors manually: http://sape.inf.usi.ch/quick-reference/ggplot2/colour
Jeff Leek, Roger Peng, and Rafa Izarry blog: https://simplystatistics.org/