[O] fontification of comment blocks (or any other kind of block)

[Mark Edgington]

It seems that there is nothing in place to allow the text inside blocks like:

#+BEGIN_COMMENT
...
#+END_COMMENT

from having its face customized.  It is possible to do this with quote and
verse blocks, only not comment blocks.  Would it be sensible to have a
"default" block face which applies to *any* block of the form

#+BEGIN_FOO
...
#+END_FOO

as long as it doesn't have a more specific face associated with it?