Log Message:
graphics/R-colorspace: Import version 1.3.2

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 an interactive palette picker (with
either a Tcl/Tk or a shiny GUI).