Is there a way to make new color profiles?

[Firefairy]

I use F.lux under two sets of conditions, when I am working at sunset and it gets dark, and when I wake up in the middle of the night. In the first situation, the presets work well; I like the Halogen one for this transition. For the second situation, I would like something balanced between Candle and Ember, but with more green maintained- I am not a fan of pink, and anything that would normally be red or orange becomes something between baby and hot pink, with the current low-temperature presets.

Is there any way, including file editing outside of f.lux, to make a new color profile? I like the amount of reduction, I just want it arranged a bit differently.