What do you use to generate documentation?

[Andrea Fontana]

On Wednesday, 13 March 2013 at 10:11:51 UTC, simendsjo wrote:
> You can redefine the DDOC macro to use a stylesheet. Add your 
> base ddoc file on the command line with redefined and 
> additional macros.

Is phobos doc based on some .ddoc file then? I see there's a 
number of .ddoc file in github d-programming-language repository 
but downloading them and adding to command line does nothing. Doc 
appears still without style...