Carries out mapping between assorted color spaces including RGB, HSV, HLS,
             CIEXYZ, CIELUV, HCL (polar CIELUV), CIELAB and polar CIELAB.
	     Qualitative, sequential, and diverging color palettes based on HCL colors
	     are provided along with corresponding ggplot2 color scales.
	     Color palette choice is aided by an interactive app (with either a Tcl/Tk
	     or a shiny GUI) and shiny apps with an HCL color picker and a
	     color vision deficiency emulator. Plotting functions for displaying
	     and assessing palettes include color swatches, visualizations of the
	     HCL space, and trajectories in HCL and/or RGB spectrum. Color manipulation
	     functions include: desaturation, lightening/darkening, mixing, and
	     simulation of color vision deficiencies (deutanomaly, protanomaly, tritanomaly).

datasets, utils, KernSmooth, MASS, kernlab, mvtnorm, vcd,
tcltk, shiny, shinyjs, ggplot2, dplyr, scales, grid, png, jpeg,
knitr, rmarkdown, RColorBrewer, rcartocolor, scico, viridis,
wesanderson

Provides a range of axis labeling algorithms

c(
  person(c("Patrick", "O."), "Perry",
         role = c("aut", "cph", "cre"),
         email = "patperry@gmail.com"),
  person("Unicode, Inc.",
         role = c("cph", "dtc"),
         comment = "Unicode Character Database"))

Process and print 'UTF-8' encoded international text (Unicode). Input, validate, normalize, encode, format, and display.

Patrick O. Perry [aut, cph, cre],
  Unicode, Inc. [cph, dtc] (Unicode Character Database)

Provides easy access to, and manipulation of, the Munsell 
    colours. Provides a mapping between Munsell's 
    original notation (e.g. "5R 5/10") and hexadecimal strings suitable 
    for use directly in R graphics. Also provides utilities 
    to explore slices through the Munsell colour tree, to transform 
    Munsell colours and display colour palettes.

c(
    person("Gábor", "Csárdi", , "csardi.gabor@gmail.com",
    role = c("aut", "cre")),
    person(
    "Brodie", "Gaslam", email="brodie.gaslam@yahoo.com",
    role=c("ctb"))
    )