Pour debug

      
// add more buttons to the html editor
function your_theme_slug_add_quicktags() {
    if (wp_script_is('quicktags')){
?>
    <script type="text/javascript">
        
    </script>
<?php
    }
}
add_action( 'admin_print_footer_scripts', 'your_theme_slug_add_quicktags' );