Optional
controllerDefines how the controller will operate. You can choose between automatic and manual mode. See AdaptiveLightingControllerMode.
Optional
customDefines a custom temperature adjustment factor.
This can be used to define a linear deviation from the HomeKit Controller defined ColorTemperature schedule.
For example supplying a value of -10
will reduce the ColorTemperature, which is
calculated from the transition schedule, by 10 mired for every change.