Here is the harsh truth. Using an falls into a gray area that depends entirely on where you use it.
If you're interested in learning more about X-Ray Minecraft 1.12.2 texture packs or exploring other customization options, here are some additional resources to check out: x ray minecraft 1.12 2 texture pack
Let me know if you want a version with transparent lava or without water visibility. Happy mining (responsibly)! Here is the harsh truth