Old GUI for 1.12.x is a release file of the Minecraft resource pack F+ PVP Add-ons, made for Minecraft 1.12.1, 1.12, 1.12.2. It was published on November 13, 2020 and is 0.1 MB in size. For the full description, screenshots and every other version, visit the F+ PVP Add-ons resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.
