Thanks for your response, Korina. I didn't notice this option, and it looks quite interesting. Actual RGB satellite images however, use multiple different IR/VIS channels. Because of this, the difference between (for instance) the top of a -5 degree Celsius Stratus cloud and -5 degree land surface is distinguishable (and will display different colors). Using a normal (single-channel) IR satellite image like Windy does, one can not see the difference between -5 degree cloud and -5 degree land.
Anyway, it might be an interesting feature for the future.