Unity-1.5.0 is a release file of the Minecraft resource pack Unity, made for Minecraft 1.12.1, 1.12, 1.12.2. It was published on June 24, 2017 and is 12.1 MB in size. For the full description, screenshots and every other version, visit the Unity resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.