add_section( 'anderson_section_upgrade', array( 'title' => esc_html__( 'More Features', 'anderson-lite' ), 'priority' => 60, 'panel' => 'anderson_panel_options' ) ); // Add custom Upgrade Content control $wp_customize->add_setting( 'anderson_theme_options[upgrade]', array( 'default' => '', 'type' => 'option', 'transport' => 'refresh', 'sanitize_callback' => 'esc_attr' ) ); $wp_customize->add_control( new Anderson_Customize_Upgrade_Control( $wp_customize, 'anderson_control_upgrade', array( 'section' => 'anderson_section_upgrade', 'settings' => 'anderson_theme_options[upgrade]', 'priority' => 1 ) ) ); }