id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
20897,extra_theme_headers hook no longer available,greenshady,westi,"In the past, to get theme data, one would call `get_theme_data()`, which would then call `get_file_data()`, to get file header data about a theme.  This function would allow you to filter the file headers by context (e.g., plugin, theme) to add in custom file headers.  Now, the `extra_file_headers` hook is no longer available with the switch to `WP_Theme`.

This hook needs to be available for backwards compatibility with themes and plugins that use it.

Here's some example code from the Theme Check plugin used by the theme review team for testing:

{{{
add_filter( 'extra_theme_headers', 'tc_add_headers' );

function tc_add_headers( $extra_headers ) {
	$extra_headers = array( 'License', 'License URI', 'Template Version' );
	return $extra_headers;
}
}}}",defect (bug),closed,normal,3.4,Themes,3.4,normal,fixed,has-patch commit dev-reviewed,