Are there any notable libraries written in D which have gotten considerable use outside the D community?

[Liam McGillivray]

I've only really joined the D community and started programming 
it rather recently. So far, the most of the libraries I've seen 
are either D bindings to C & C++ programs, or tools related to 
the language itself. Of the ones that aren't, I've seen none that 
say anything about being used by other languages. In short, all 
the D libraries I'm aware of appear to be made specifically for 
use by D programs.

Of the libraries I know of that are often used outside the 
language they are written in, most are in C. All the one's that 
aren't are in C++.

But are there any exceptions that I should be aware of? Are there 
any libraries that have been written in D, and then gotten 
considerable use by programmers without D experience, in programs 
not written in D?

I would think that this would be technically viable with the 
`betterC` option, though the difficulty would be in advertising 
it's compatibility to non-D programmers.