Is your feature request related to a problem? Please describe.
Not a problem, but some people want to play a little bit more legit to only use the Xray as a better visual guide to find specific blocks, rather than "cheat" also seeing outlines of hidden ores/blocks

Describe the solution you'd like
Add an option to only show exposed blocks in the settings. Exposed meaning one of the connected same type of blocks touches air/water/lava. Just a simple recursive function.

Describe alternatives you've considered

Additional context