These may be outdated! Look on the modrinth page for a more up-to-date list of credits!

tree star is an upside down spore blossom base from festive legacy console mashup pack
any textures based off blocks, items & mobs past 1.13 are heavily based off of/modified versions of textures from pacp
some textures based off of ones from the "Reminiscence" modpack's custom resource pack by BBali & DrBruhMoments
spoon texture from Legacy Console Edition, as an icon for the leaderboard
Wildfire texture from Friends&Foes Programmer Art by daralexen (creative commons 4.0)
any textures based off blocks, items & mobs past 1.13 are heavily based off of/modified versions of textures from pacp
zinc pallete/texture from Create: World of Color
grooved ice textures based off the first known textures of glass, recreated by Capopanzo on the mc wiki
some textures based off of ones from the "Reminiscence" modpack's custom resource pack by BBali & DrBruhMoments
sculk jaw based off/edits of recreations of textures seen in mc live 2020 - recreations made by Maksom4ik, and Deshman-gpuser on the mc wiki
caverns & chasm's Mime & Peeper textures based off the Skeleton and 'Observer' mob textures from the Cypress build of Alpha 1.0.16.05, a presumably completed ARG about a forgotten, obscure branch of alpha builds. The mime is aditionally using textures from the Bogged skeleton's textures in Programmer Art Continuation Project.
Hoglin Meat texture from Legacy Console Edition, as an award icon
Unrelated, but you would not believe how hard it was to get the texture for Education Edition's Glowsticks & Balloons.
any textures based off blocks, items & mobs past 1.13 are heavily based off of/modified versions of textures from pacp