Exporting the Poisson mesh from the training model did not see any texture

[TonyDua]

Thank you for your great work!
I tried to train the dataset step by step according to the readme guide, but I found that the exported mesh.py did not have textures or vertex colors.
However, looking at your project webpage including the cases on GitHub, the exported models all have textures, or in other words, they all have RGB colors.
So I want to ask you, does the mesh exported by AtomGS have texture mapping? Or did I make a mistake somewhere?
Looking forward to your reply and guidance!