The graphics of the game have reached a new level. After the clusters (see here), setting the color grading over time allows us to better appreciate the different atmospheric shades of the various moments of the day.
This is what you can see in this 30 seconds video, showing the day/night cycle on Merx.
And if the sun rises tomorrow morning - which I'm pretty sure - and we're outside at sunrise - which I'm much less sure - we could enjoy the color grading in real life! Go on, I dare you!