If you can read Russian, Real Space has a dedicated site. The link should be on Steam Workshop.
System backgrounds are also changed by another mod (besides Real Space): Beautiful/RealisiticUniverse suite, iirc.
I don't have the game at home currently, so I can't help you by peering at my mods folder.
Could not find a dedicated site, but I've downloaded a second version of stellaris since there is steam key associated with the account, not idea but it works.
was similar problem with the working version of beatuful universe, need to test that further later though since it seemed to start working without me doing anything differently
Now I've got a problem with the game crashing on startup if I have too many uninhabitable planets (adding ~90 including suns, if I remove the suns or some of the other uninhabitable planets I don't get the crash); since 90 seems way too small a number I figured I would look into crash logs and got this:
Application: Stellaris Plaza
Version: 7.2.*
Date/Time: 2020-07-31 18:05:08
Unhandled exception C0000005 (EXCEPTION_ACCESS_VIOLATION) at address 0x00007FF620D06F3F
Stack Trace:
1 stellaris.exe (function-name not available) (+ 0)
2 stellaris.exe (function-name not available) (+ 0)
3 stellaris.exe (function-name not available) (+ 0)
4 stellaris.exe (function-name not available) (+ 0)
5 stellaris.exe (function-name not available) (+ 0)
6 stellaris.exe PHYSFS_writeSLE32 (+ 483826)
7 stellaris.exe PHYSFS_writeSLE32 (+ 133319)
8 KERNEL32.DLL BaseThreadInitThunk (+ 20)
9 ntdll.dll RtlUserThreadStart (+ 33)
10 ntdll.dll RtlUserThreadStart (+ 33)
Which unfortunately doesn't help me. From google it seems to be a problem that causes many things to crash for different reasons, and while I can make it work on my computer by severely limiting the amount of uninhabitable planet types (doesn't seem to be any problem with the >150 inhabitable (colonizable = yes) planet types I have right now though, and if I put colonizable=yes on all of my uninhabitable planet types it doesn't crash anymore), I'm not very confident that the problem isn't based somehow on the specs of my computer
anyone have any other knowledge of this or is there a bug tracker I am able to find? I found one person had a similar problem with a specific mod, am similar crash issues with different software, but nothing else useful for me)