Does the server use modded textures?

Hi there, gotta say, I really like the server’s enormous underground base. But what I want to know, is whether all the textures in the server are vanilla terraria ones or modded, because I noticed the chests and lights all look different, I’m pretty new to Terraria so sorry if it’s a silly question.

Everything is just paint on the building materials,
the chests are also painted (sky blue, on that case)