THBusiness - change widget tags

<?php

/**
 * Unregister the original sidebars (with h1 title tags) and reregister (with default h2 title tags).
 *
 */
function thb_reinitialize_sidebars() {

    unregister_sidebar( 'thbusiness-main-sidebar' );
    unregister_sidebar( 'thbusiness-business-top-sidebar' );
    unregister_sidebar( 'thbusiness-business-left-sidebar' );
    unregister_sidebar( 'thbusiness-business-right-sidebar' );
    unregister_sidebar( 'thbusiness-business-bottom-sidebar' );
    unregister_sidebar( 'footer-left' );
    unregister_sidebar( 'footer-mid' );
    unregister_sidebar( 'footer-right' );

    register_sidebar( array(
        'name'          => __( 'Main Sidebar', 'thbusiness' ),
        'id'            => 'thbusiness-main-sidebar',
        'description'   => '',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="widget-title">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Business Template Top Area', 'thbusiness' ),
        'id'            => 'thbusiness-business-top-sidebar',
        'description'   => 'Shows the widgets on the top area of the business page.',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="business-page-widget-title">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Business Template Left Area', 'thbusiness' ),
        'id'            => 'thbusiness-business-left-sidebar',
        'description'   => 'Shows the widgets on the left area of the business page.',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="business-page-widget-title">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Business Template Right Area', 'thbusiness' ),
        'id'            => 'thbusiness-business-right-sidebar',
        'description'   => 'Shows the widgets on the right area of the business page.',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="business-page-widget-title">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Business Template Bottom Area', 'thbusiness' ),
        'id'            => 'thbusiness-business-bottom-sidebar',
        'description'   => 'Shows the widgets on the bottom area of the business page.',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="business-page-widget-title">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Footer Left Sidebar', 'thbusiness' ),
        'id'            => 'footer-left',
        'description'   => '',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="footer-widget-title">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Footer Mid Sidebar', 'thbusiness' ),
        'id'            => 'footer-mid',
        'description'   => '',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="footer-widget-title">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => __( 'Footer Right Sidebar', 'thbusiness' ),
        'id'            => 'footer-right',
        'description'   => '',
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget'  => '</aside>',
        'before_title'  => '<h2 class="footer-widget-title">',
        'after_title'   => '</h2>',
    ) );
}
add_action( 'widgets_init', 'thb_reinitialize_sidebars', 20 );