Chromatic Arsenal

Z-Tunic/sonicx8000 (golden heart, glass shield, ward crystal, shadow treads (1.21.1), and duality rings textures)

TwilightStar (way too many textures than can reasonably be listed here)

u/absolutely_aroace on reddit (old Magic Garlic Bread texture)

onno (new magic garlic bread texture, shadow charm texture (pre-1.21.1), ascended star texture, cleanup of guidebook item texture)

Band of Gigantism (and in turn, Terraria Calamity) for the texture that was used as a basis for the BoG compatibility item (1.19.2)

Enigmatic Legacy (because the BoG compatibility item uses its description style for consistency reasons)