allowed_themes filter-hook . WP 3.0.0

Filters the array of themes allowed on the network.

Usage

add_filter( 'allowed_themes', 'filter_function_name_3382' );
function filter_function_name_3382( $allowed_themes ){
	// filter...

	return $allowed_themes;
}

$allowed_themes(string[])

An array of theme stylesheet names.

Where the hook is called

$allowed_themes = apply_filters( 'allowed_themes', $allowed_themes );

Where in WP core the hook is used WordPress