Describe the bug
Some mods use internal classes of JEI, which are not covered by REI's compatibility layer.

Some use cases may be valid, such as More Overlay. Others use internal classes while the API provides the same methods, this issue is opened to track the invalid use cases.

We can not replicate JEI's internals (If we do, we just become JEI), the current plans are to transform classes on runtime that uses JEI's internals, into their API counterparts.

It is impossible to support these mods 100%, edge cases are going to happen, but we can try to support the common use cases.