Default Items, Projectiles, Buffs, NPCs, Tiles, and Walls.By using tConfig, all of these things can be created and organized into Mod Packs - folders containing modified or custom content. TConfig is best described as a content creation tool and content loader, where the content can be: items (weapons, armor, potions, accessories), tiles (blocks, furniture, crafting stations), projectiles (stuff that goes flying through the air), and NPCs.