mce_css filter-hook . WP 2.1.0

Filters the comma-delimited list of stylesheets to load in TinyMCE.

Usage

add_filter( 'mce_css', 'filter_function_name_531' );
function filter_function_name_531( $stylesheets ){
	// filter...

	return $stylesheets;
}

$stylesheets(string)

Comma-delimited list of stylesheets.

Where the hook is called

$mce_css = trim( apply_filters( 'mce_css', $mce_css ), ' ,' );

Where the hook is used (in WP core)