There are far too many legal translation topics available at the moment, but here is a break. Picture from Wikipedia (but not Wikimedia Commons):
Munch was surely expressing anxiety, but the colour of the sky was correct at the time, after the eruption of Krakatoa. From the Independent:
With its dramatic red sky, Edvard Munch’s The Scream is renowned as a depiction of despair. Less well known is the fact that the Norwegian artist was merely recreating what he saw in Oslo in 1883. Professor Olson’s team found that the eruption of Mount Krakatoa in Indonesia led to a series of sunsets in Norway which made the sky seem ablaze.