sr_liveries.zip is a release file of the Minecraft resource pack Southern Railway Liveries for Immersive Railroading, made for Minecraft 1.16.5, 1.10.2, 1.11, 1.15.2, 1.14, 1.7.10, 1.12.2. It was published on November 24, 2023 and is 38 MB in size. For the full description, screenshots and every other version, visit the Southern Railway Liveries for Immersive Railroading resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.