For sure, Max. Not so much fog perhaps, but early morning mist and dew, maybe? Which tends to split the colours of the spectrum when bright sunlight reaches us a long way through Earth's atmosphere when Sol is rising low down above the eastern horizon...
I feel minded to start a new topic: Why do we get glorious sunrises and sunsets?
Have a head start on this poser, as I already know the answer! (Smart ass)
Cheers- AL

Gone but not forgotten...