TODO
These are among desired or expected changes to babl, that are missing.
- extensions for many SIMD variants for many archiectures.
- Spectral pixel formats - with configurable spectral mapping to tristimulus with configurable illuminant + observer
- Spectral substrate + ink/paint job configuration as a pixel format,
combined with above to achieve soft proofing, and stochastic sparse LUT for
separation.
- Support for datatypes that are not a multiple of 8bit.