TerraCotta Add-on 1.1-1.13 is a release file of the Minecraft resource pack A Little Taste of Jerm - TerraCotta Add-on, made for Minecraft 1.13-Snapshot. It was published on July 18, 2018 and is 0.5 MB in size. For the full description, screenshots and every other version, visit the A Little Taste of Jerm - TerraCotta Add-on resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.