<?php
function callcenter_ticker_setting($wp_customize){
  $wp_customize->add_panel('general_setting', array(
     'priority' => '2',
     'capability' => 'edit_theme_options',
     'theme_supports' => '',
     'title' => __( 'General Setting', 'callcenter' ),
     'description' => __( 'This allows to edit the header', 'callcenter' ),
  ) );

 //Default sections to custom panel
  $wp_customize->get_section('title_tagline')->panel = 'general_setting';
  $wp_customize->remove_section('nav');
  $wp_customize->remove_section( 'colors');
  $wp_customize->get_section( 'static_front_page')->panel = 'general_setting'; 

  $wp_customize->add_section('favicon_image', array(
     'title' => __('Site Icon', 'callcenter'),
     'priority' => '110',
     'panel' => 'general_setting',
  ) );

  $wp_customize->add_setting( 'callcenter_favicon', array(
      'default' =>      '',
      'sanitize_callback' => 'esc_url_raw'
  ) );

  $wp_customize->add_control(new WP_Customize_Image_Control($wp_customize,'callcenter_favicon', array(
      'section' => 'favicon_image',
      'label' => __('Upload Site Icon', 'callcenter'),
      'description' => __('Standard Size of Site Icon is 40x40px', 'callcenter'),)
  ) );
}
add_action( 'customize_register', 'callcenter_ticker_setting' );