WordPress at a glance
action is not described

customize_controls_print_styles action-hook . WP 3.4.0

Fires when Customizer control styles are printed.

Usage

add_action( 'customize_controls_print_styles', 'action_function_name_5248' );
function action_function_name_5248(){
	// action...
}

Where the hook is called

In file: /wp-admin/customize.php
customize_controls_print_styles
wp-admin/customize.php 163
do_action( 'customize_controls_print_styles' );

Where the hook is used (in WP core)

wp-includes/customize/class-wp-customize-site-icon-control.php 40
add_action( 'customize_controls_print_styles', 'wp_site_icon', 99 );
wp-includes/class-wp-customize-widgets.php 115
add_action( 'customize_controls_print_styles', array( $this, 'print_styles' ) );
wp-includes/default-filters.php 490
add_filter( 'customize_controls_print_styles', 'wp_resource_hints', 1 );
wp-admin/customize.php 105
add_action( 'customize_controls_print_styles', 'print_admin_styles', 20 );