colour.XYZ_TO_SD_METHODS# colour.XYZ_TO_SD_METHODS = CanonicalMapping({'Jakob 2019': ..., 'Mallett 2019': ..., 'Meng 2015': ..., 'Otsu 2018': ..., 'Smits 1999': ...})# Supported spectral distribution recovery methods. References [JH19], [MY19], [MSHD15], [Smi99]
