Is there a macro for code snippets introduced with "---"?

[Andrei Alexandrescu via Digitalmars-d]

On 7/3/17 7:19 PM, Vladimir Panteleev wrote:
> On Monday, 3 July 2017 at 23:17:02 UTC, Andrei Alexandrescu wrote:
>> Is there a macro equivalent for "---"?
> 
> D_CODE ?

That renders the code in constant-width font, but it's not colorized. -- 
Andrei