It is not perfect, but it mostly works. It now changes the names of all Jungle blocks to Ebony. I am pretty sure that every single jungle related texture was successfully changed to Ebony. What can I say? I like Ebony. I would probably use this unless I am on a server or share my world.
I fixed the preview images.
Hate all vanilla woods? Here is a start for you: https://www.planetminecraft.com/texture-pack/cherry-trees-birch/ https://www.planetminecraft.com/texture-pack/all-1-19-mangrove-wood-blocks-the-wild-update/ https://www.planetminecraft.com/texture-pack/silver-acacia-wood/ https://www.planetminecraft.com/texture-pack/spooky-dark-oak/ https://www.planetminecraft.com/texture-pack/dark-oak-to-red-mangrove/ https://www.planetminecraft.com/texture-pack/from-dark-oak-to-mangrove/ https://www.planetminecraft.com/texture-pack/white-birch/ https://www.planetminecraft.com/texture-pack/spooky-wood/ https://www.planetminecraft.com/texture-pack/spruce-to-ginkgo/

or go to this collection by DoesThisWork https://www.planetminecraft.com/collection/137871/alt-forest/
I would feel like this pack is sufficiently advanced if DoesThisWork adds this to alt forest.