Not sure if if this is a bug or as intended. I think it used to work differently.
DefaultLed[1-7]IntensityWhenOn is limited at whatever the Synchronized value is. Meaning, if I manually set the value below the Synchronized value it will visually change. But, if it is set higher it will only visually go to the Synchronized value never higher.
IntensityWhenOff works as expected where is will use the manually set value no matter what the Synchronized is.