Differentiate between "void" and "unloaded chunk"?

[PaulWalkerUK]

Could there be anyway to differentiate on the The End map "missing chunks" from "the void"? Looking at this as an example, it's readily apparent there's at least a couple of chunks that haven't been loaded - but you can't tell how far the unloaded chunks extend - is all that to the left void or unloaded?

I don't know if it might be possible to use a slightly different colour or texture maybe?