This field is identical to the StepMode field of the StepHue command of the Color Control cluster (see sub-clause StepHue Command).
The StepSize field specifies the change to be added to (or subtracted from) the current value of the device’s enhanced hue.
The TransitionTime field specifies, in units of 1/10ths of a second, the time that shall be taken to perform the step. A step is a change to the device’s enhanced hue of a magnitude corresponding to the StepSize field.
NOTE
Here TransitionTime data field is of data type uint16, while the TransitionTime data field of the StepHue command is of data type uint8.
Input to the ColorControl enhancedStepHue command
See
MatterSpecification.v13.Cluster § 3.2.11.17