Per-Channel Display Transform with Wider Rendering Gamut

A potentially scaled Display P3 via optimization:

-------------------

Primaries          : [[ 0.72015817  0.319016  ]
                      [ 0.2597848   0.72946937]
                      [ 0.13221145  0.03058931]]
Whitepoint         : [ 0.3127  0.329 ]
Whitepoint Name    : D65
Encoding CCTF      : None
Decoding CCTF      : None
NPM                : None
NPM -1             : None
Derived NPM        : [[ 0.51530595  0.26043935  0.17471063]
                      [ 0.22827047  0.73130734  0.0404222 ]
                      [-0.0280309   0.01077291  1.10631574]]
Derived NPM -1     : [[ 2.28016893 -0.80716302 -0.330595  ]
                      [-0.71531088  1.62136533  0.0537218 ]
                      [ 0.06473845 -0.0362395   0.89500163]]
Use Derived NPM    : True
Use Derived NPM -1 : True

Cheers,

Thomas