wp_admin_css_uri example

// We already printed the style queue. Print this one immediately.             wp_print_styles( $handle );
        } else {
            // Add to style queue.             wp_enqueue_style( $handle );
        }
        return;
    }

    $stylesheet_link = sprintf(
        "<link rel='stylesheet' href='%s' type='text/css' />\n",
        esc_url( wp_admin_css_uri( $file ) )
    );

    /** * Filters the stylesheet link to the specified CSS file. * * If the site is set to display right-to-left, the RTL stylesheet link * will be used instead. * * @since 2.3.0 * @param string $stylesheet_link HTML link element for the stylesheet. * @param string $file Style handle name or filename (without ".css" extension) * relative to wp-admin/. Defaults to 'wp-admin'. */