this is a add-on pack af this series. the main pack:https://www.planetminecraft.com/texture-pack/xekrsquarepattern/
You can find the main pack and more add-on packs on my homepage.There is also a web page to browse all add-ons directly but it is under construction, so do the video.Also, you can check the list of additional files in cursforge to get all add-on packs.