How to install:
1. Use OpenIV software.
   WARNING: Back up your original "skydome.ytd" file before replacing it so you can always go back to the original skydome if needed.

2. Click "edit mode."

3. Go to "GTA V / x64a.rpf / textures" folders in OpenIV.

4. Drag the "skydome.ytd" file that you downloaded into the "textures" folder. It will automatically replace the original "skydome.ytd." You can then exit and open GTA V to see if it works.
WARNING: This doesn't work alongside any graphics mods. Therefore, please avoid installing graphics mods like Natural Vision graphic mod. Use only the vanilla graphics. Thank you for your understanding.