A Toolbox for Manipulating and Assessing Colors and Palettes
Description
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).
