Images Directory Function for Bones Themes

gistfile1.php

<? 
/**
 * Retrieve images directory URI. Bones Extension
 *
 * @return string
 */
function get_images_directory_uri() {
	$stylesheet = get_stylesheet();
	$theme_root = get_theme_root( $stylesheet );
	$stylesheet_dir = "$theme_root/$stylesheet/library/images";

	/**
	 * Filter the stylesheet directory URI.
	 *
	 * @since 1.5.0
	 *
	 * @param string $stylesheet_dir_uri Stylesheet directory URI.
	 * @param string $stylesheet         Name of the activated theme's directory.
	 * @param string $theme_root_uri     Themes root URI.
	 */
	return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri );
}