Thz Ace is a code editor text area that is using ace.js for syntax highlighting.
option snippet
'option_name' => array( 'type' => 'thz-ace', 'label' => __('Option label', '{domain}'), 'desc' => esc_html__('Option description.', '{domain}'), 'help' => esc_html__('Option help.', '{domain}'), 'value'=>'', 'mode'=>'html', // css,html,javascript,json 'theme'=>'chrome', // chrome, tomorrow_night 'height'=>250 )