So we all know that the game has changed quite a bit since it's release in 2008. One interesting change that I can't seem to find much information about is Marleybone's sky.
If you were to go to Marleybone right now in the game and look at the sky, you will notice that it is a dark blue with a little bit of gray, and it becomes day-time blue lower down (it can be seen when riding on one of those hot air balloons).
Yet when you look at some of the images of Marleybone from a while back (around 2008 and 2009, maybe 2010), the sky is black higher up and dark blue lower down. In game, you can actually see this on the map of Marleybone and on the paintings of the Marleybone houses in the furniture shop.
Personally, I like the old sky better because it gave the world a more gloomy atmosphere and it fit the whole crime/police theme better, plus the black and blue contrasted nicely and the stars stood out more. Sadly, I'm not able to find any information about this; no forum posts, no update notes, nothing. I just wish I could know a little more about this, maybe it could even be put into the classic mode option.
Here are some pictures of both the old sky and the current sky:
