Unity-1.3.0 is a release file of the Minecraft resource pack Unity, made for Minecraft 1.9.2, 1.7.10, 1.9, 1.8.9. It was published on April 16, 2016 and is 13.5 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.