Shortcut to a specific JCO 4 color palette from ggsci package.
JCO_Four()
4 color palette from the JCO ggsci palette
Selection of colors from the JCO palette from ggsci being called through paletteer. See ggsci for more info on palettes https://CRAN.R-project.org/package=ggsci
cols <- JCO_Four()
PalettePlot(pal= cols)