WordPress at a glance
action is not described

customize_controls_print_scripts action-hook . WP 3.4.0

Fires when Customizer control scripts are printed.

Usage

add_action( 'customize_controls_print_scripts', 'action_function_name_2689' );
function action_function_name_2689(){
	// action...
}

Where the hook is called

In file: /wp-admin/customize.php
customize_controls_print_scripts
wp-admin/customize.php 170
do_action( 'customize_controls_print_scripts' );

Where the hook is used (in WP core)

wp-includes/class-wp-customize-widgets.php 116
add_action( 'customize_controls_print_scripts', array( $this, 'print_scripts' ) );
wp-admin/customize.php 103
add_action( 'customize_controls_print_scripts', 'print_head_scripts', 20 );