Fix warning signs (rollback of paint rust to the first version).

Recent changes:

Made a normal material for the metal part. The glow no longer shines through the foliage. You can see the changes in the first few screenshots. Fixed images of signs.

To be honest, I didn't think that this version would gain the most approval. The original version I made from a clean version, somewhere in 3 hours. including drawing signs... I had to redo everything...