Default post format setting does not respect theme support

[seanleavey]

In options-writing.php, the Default Post Format setting does not check whether the current theme supports the built-in formats. Would it not be more intuitive if only the formats supported by the current theme were in the list to select? Then a description could be added underneath to say "these are the formats supported by the currently selected theme".

Alternatively, there could be a filter added to get_post_format_strings in wp-includes/post-formats.php to allow themes/plugins to remove available formats from this list.