Lee Gel Colours based on Tungsten

Hi Colour Experts,

I notice that the Gel Colours for LEE in the colour picker are based on Tungsten ( xy values are close to LEEs values for a said colour on Tungsten ).

Is there a way to have either Tungsten or daylight GEL Values? Is there a reason for the colours to be on Tungsten source?

Thanks for anyone's understanding here.

Andy