get_setting( 'blogname' )->transport = 'postMessage'; $wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage'; $wp_customize->add_setting( 'header_color' , array( 'default' => 'ffffff', 'transport' => 'postMessage', 'sanitize_callback' => 'sanitize_hex_color_no_hash', 'sanitize_js_callback' => 'maybe_hash_hex_color', ) ); $wp_customize->add_control( new WP_Customize_Color_Control( $wp_customize, 'header_color', array( 'label' => __( 'Header Color', 'aventurine' ), 'section' => 'colors', 'settings' => 'header_color', ) ) ); } add_action( 'customize_register', 'aventurine_customize_register' ); function aventurine_customize_css() { $header_color = get_theme_mod( 'header_color', 'ffffff' ); ?>