This is a texture pack for Minecraft 1.8.x which backports most item and block textures from Minecraft 1.18.

You can download it by 1. Clicking on the .zip folder:

and 2. Clicking "Download": If any textures are missing I either forgot, made a mistake, couldn't be bothered or preferred the old texture.

You can find all default resourcepacks here: https://texture-packs.com/resourcepack/default-pack/