我昨天开始在Wordpress中编码，我的问题是为什么在“Nagłówek”部分只显示“Tło”？这是代码：

<?php
// Header Section
$wp_customize->add_section(\'header\', array(
    \'title\' => __(\'Nagłówek\', \'Agmor Bootstrap\'),
    \'description\'=> sprintf(__(\'Opcje nagłówka:\', \'Agmor Bootstrap\')),
    \'priority\' => 100
    ));

$wp_customize -> add_setting(\'header_logo\', array(
    \'default\' => get_bloginfo(\'template_directory\').\'/img/logo.png\', 
    \'type\' => \'theme_mod\'

));

$wp_customize -> add_control(new WP_Customize_Image_Control($wp_customize, \'Agmor Bootstrap\', array(
    \'label\' => __( \'Logo\', \'Agmor Bootstrap\'),
    \'section\' => \'header\',
    \'settings\' => \'header_logo\',
    \'priority\' => 1
))); 


$wp_customize -> add_setting(\'header_background\', array(
    \'default\' => get_bloginfo(\'template_directory\').\'/img/bg-header.png\', 
    \'type\' => \'theme_mod\'

));

 $wp_customize -> add_control(new WP_Customize_Image_Control($wp_customize, \'Agmor Bootstrap\', array(
    \'label\' => __( \'Tło\', \'Agmor Bootstrap\'),
    \'section\' => \'header\',
    \'settings\' => \'header_background\',
    \'priority\' => 2
)));