How to change the sunshine lightning:
The texture is in this file : data\effect_nt.xvm, which contains a lot of effects as Telepipe, explosion, loading effect... The sunshine lightning is in the Image 31.
Before:

If I fill the texture with blue:

So with a transparent texture, you can remove the lightning :

How to change the lightning of objects:
Doors are still orange, we need to change lightning of objects.
Open the file data\lightentry.bin with an hex editor.
Offset 0040 to 007F = Lightning object for Forest 1 (normal)
Offset 0080 to 00BF = Lightning object for Forest 2 (normal)
Offset 0D00 to 0D4F = Lightning object for Forest 1 (ultimate)
Offset 0D50 to 0D9F = Lightning object for Forest 2 (ultimate)
Just copy the data from forest 1 and 2 (normal) to forest 1 and 2 (ultimate).
Before:

After:

This picture is the lightning objets of the area "Forest 1" in lightentry.bin
The bytes in red/green/blue are the colors.













kra you ass it's 68 bytes per entry not 64.