1.13 BONUS Mushroomblocks (Beta).zip is a beta file of the Minecraft resource pack BONUS MUSHROOM BLOCKS Blockstates, made for Minecraft 1.13-Snapshot. It was published on February 5, 2018 and is 2.9 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the BONUS MUSHROOM BLOCKS Blockstates resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.