Lighting world is a release file of the Minecraft map Light Testing Map For Shaders (and Texture Packs), made for Minecraft 1.17.1, 1.18.1, 1.17, 1.18. It was published on January 29, 2022 and is 1.9 MB in size. For the full description, screenshots and every other version, visit the Light Testing Map For Shaders (and Texture Packs) map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.