I would like to see more color temperatures below 2.700 K added in the Standard Colors section of the Gel Picker screen on the Color Picker tab.
This should go at least as low as 2.000K. Any lower then that it is porbably more like orange, but it has the advantage of keeping a light closer to the black body curve if you need to fade from warm to cold white and cyou an add a few steps in between.