The crazy thing is: it happens all over the internet.
Here are just two random examples from the Random Screenshot Megathread : (as always, not meant as an offence against the OP, but to illustrate flaws in the product)
Banding and purple fringes in the sky:
Areas in clouds with no distinctive color variation and noticeable gradients from dark to light, fringes:
Posting more pictures won’t help, I’m afraid.
Reporting to Zendesk won’t hurt. I did, so should anyone bothered by these effects.
We have seen an intensive discussion to the extent of an alleged downgrade after SU5, yet there’s no statement from Microsobo whatsoever regarding this aspect of SU5 so far.
Release notes for SU6 don’t mention any possible improvements so far.
And the truth is: people don’t seem to notice or care.
Here’s somthing for the Q&A, not gaining real traction so far:
https://forums.flightsimulator.com/t/can-you-explain-the-changes-in-su5-that-lead-to-color-banding-and-fringes-for-many-user-on-sdr-monitors-and-are-they-fixable/443671?u=toml7753
Many threads for color banding, fringes and weird colors have been merged into this one with a modest vote count so far, and I won’t be too optimistic about the [Bug logged] tag:
Sorry to sound pessimistic, but I fear we have seen the best of MSFS graphics wise and will be stuck with this new “look”, as that doesn’t seem to bother so many.