superb system design. great use of hooks and filters.
so im looking to add (prepend or append) a div tag (or any other content ) in each post header -- but dont want to remove the original content.
it seems that the filters actually replace the original function..
something like the following pseudocode:
//my new stuff
echo <div class='myclass' ></div>
//then onto original content
call original function
add_filter( 'thematic_postheader', 'childtheme_thematic_postheader');