Hi,
both kcontrol modules are related to monitor settings - randr for resolution 
and rotation, kgamma to gamma correction. But they are located at different 
places in the kcontrol menue. I think it's a good idea to move them (and 
other similar modules in the future) to the same place in kcontrol, maybe to 
a new subsection called "monitor settings"?

Best regards,
Michael v.Ostheim