Coloring and fonts on graphs with ggplot2 #660099

[dullhunk]

geom_bar(mapping = aes(x = year, y = students, fill = "#660099")

• http://www.cookbook-r.com/Graphs/Colors_(ggplot2)
• https://stackoverflow.com/questions/38788357/change-bar-plot-colour-in-geom-bar-with-ggplot2-in-r