It's a modified version of the golden days Resource pack that aims to fix/ improve some things.
oh and it also has fresh animations just because I like it..
my apologies for not explaining so well but i'm sure you'll like it if you like old minecraft suff.
as a note deepslate is literally holystone from the aether mod i thought it was a clever thing.
for best results of old look i recommend the nostalgic tweaks mod for fabric and this pack with optifine. oh and you might want to change the fog settings in optifine to 0.
thank you for coming to my ted talk = D.
I DO NOT OWN ANY OF THE TEXTURES USED IN THE PACK AND HAVE SIMPLY MAD A HOGDE POGDE OF OLD TEXTURES THAT LOOK FABULOUS.