COMMON color_constants, IlluminantC, IlluminantD65, IlluminantE, GAMMA_REC709
COMMON color_systems, colorSystem, NTSCsystem, EBUsystem, SMPTEsystem, HDTVsystem, CIEsystem, Rec709system
COMMON color_tables, cie_colour_match

if not KEYWORD_SET(dontrecurse) then setup_color