Why is difference pulse values configured for the Timer Channels on this HAL 6 step PWM example provided by ST?

This was provided in the STM32Cube Examples for STM32F767ZI-Nucleo. I do not understand why the pulse has been configured with different values for the different Channels. They are turned off and on as required by the commutation sequence, so I do not see any reason why the pulses would be different? (I don't have the link for the board I am using but this is the same code for another)

 https://github.com/pellepl/verisure1512/tree/master/ext-libs/STM32Cube_FW_F7_V1.2.0/Projects/STM32756G_EVAL/Examples/TIM/TIM_6Steps