Clear GUI 1.9 - 1.19 (outdated) is a release file of the Minecraft resource pack Clear "Glass" GUI, made for Minecraft 1.16-Snapshot, 1.17.1, 1.9.1, 1.16.3, 1.13.1, 1.9.3, 1.15-Snapshot, 1.16.1, 1.18.1, 1.10-Snapshot, 1.9.4, 1.9.2 and more. It was published on July 31, 2022 and is 0.3 MB in size. For the full description, screenshots and every other version, visit the Clear "Glass" GUI resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.