Q: Can I use this mod with DX10?
A: Yes, you can. The 1.3 version doesn't use the bloom anymore so it should look the same on DX9 and DX10.
Q: Is the loading user_atmosfear.ltx required?
A: No, it isn't required but recommended as it adjust some settings to maintain the proper color balance.
Q: Can I just replace my user.ltx file with user_atmosfear.ltx?
A: Yes, you can, but it is not recommended as user_atmosfear.ltx doesn't contain main graphic settings as resolution or key bindings.
Q: Why the NPP is still visible on the north when in NPP level?
A: It would be a waste of time and system resources if I have created separate sky boxes for NPP level only.