withOpponentB method
Creates a new RayOklab with a different blue-yellow opponent axis value.
Negative values tend toward blue, positive values toward yellow. The lightness, green-red axis, and opacity remain unchanged.
Implementation
RayOklab withOpponentB(double opponentB) {
return RayOklab._(l: _l, a: _a, b: opponentB, opacity: opacity);
}